feat(market-data): 优化同步并增加完整性检查

.env.example

@@ -17,4 +17,10 @@ ZHIXING_POSTGRES_PASSWORD=zhixing
 # ZHIXING_DATABASE_URL=postgresql://zhixing-system:<url-encoded-password>@postgresql:5432/zhixing-system?sslmode=disable
 ZHIXING_TUSHARE_TOKEN=
 ZHIXING_MARKET_DATA_CSV_ROOT=/app/data/market-data
+ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD=0.99
+ZHIXING_MARKET_DATA_MAX_WORKERS=8
+ZHIXING_MARKET_DATA_MAX_RETRIES=3
+ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS=1.0
+ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS=0.2
+ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY=7380521
 API_UPSTREAM=http://server:8000

docker-compose.dev.yml

@@ -30,6 +30,12 @@ services:
       ZHIXING_DATABASE_URL: ${ZHIXING_DATABASE_URL:-postgresql://zhixing:zhixing@postgres:5432/zhixing}
       ZHIXING_LOG_LEVEL: ${ZHIXING_LOG_LEVEL:-INFO}
       ZHIXING_MARKET_DATA_CSV_ROOT: /app/data/market-data
+      ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD: ${ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD:-0.99}
+      ZHIXING_MARKET_DATA_MAX_WORKERS: ${ZHIXING_MARKET_DATA_MAX_WORKERS:-8}
+      ZHIXING_MARKET_DATA_MAX_RETRIES: ${ZHIXING_MARKET_DATA_MAX_RETRIES:-3}
+      ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS: ${ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS:-1.0}
+      ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS: ${ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS:-0.2}
+      ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY: ${ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY:-7380521}
       ZHIXING_TUSHARE_TOKEN: ${ZHIXING_TUSHARE_TOKEN:-}
     init: true
     ports:
@@ -92,6 +98,12 @@ services:
     environment:
       ZHIXING_DATABASE_URL: ${ZHIXING_DATABASE_URL:-postgresql://zhixing:zhixing@postgres:5432/zhixing}
       ZHIXING_MARKET_DATA_CSV_ROOT: /app/data/market-data
+      ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD: ${ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD:-0.99}
+      ZHIXING_MARKET_DATA_MAX_WORKERS: ${ZHIXING_MARKET_DATA_MAX_WORKERS:-8}
+      ZHIXING_MARKET_DATA_MAX_RETRIES: ${ZHIXING_MARKET_DATA_MAX_RETRIES:-3}
+      ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS: ${ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS:-1.0}
+      ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS: ${ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS:-0.2}
+      ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY: ${ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY:-7380521}
       ZHIXING_TUSHARE_TOKEN: ${ZHIXING_TUSHARE_TOKEN:-}
     volumes:
       - ./zhixing-server:/app

docker-compose.prod.yml

@@ -12,6 +12,12 @@ services:
       ZHIXING_DATABASE_URL: ${ZHIXING_DATABASE_URL:?Set ZHIXING_DATABASE_URL to the 1Panel PostgreSQL URL}
       ZHIXING_LOG_LEVEL: ${ZHIXING_LOG_LEVEL:-INFO}
       ZHIXING_MARKET_DATA_CSV_ROOT: /app/data/market-data
+      ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD: ${ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD:-0.99}
+      ZHIXING_MARKET_DATA_MAX_WORKERS: ${ZHIXING_MARKET_DATA_MAX_WORKERS:-8}
+      ZHIXING_MARKET_DATA_MAX_RETRIES: ${ZHIXING_MARKET_DATA_MAX_RETRIES:-3}
+      ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS: ${ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS:-1.0}
+      ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS: ${ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS:-0.2}
+      ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY: ${ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY:-7380521}
       ZHIXING_TUSHARE_TOKEN: ${ZHIXING_TUSHARE_TOKEN:-}
     init: true
     expose:
@@ -91,6 +97,12 @@ services:
       TZ: Asia/Shanghai
       ZHIXING_DATABASE_URL: ${ZHIXING_DATABASE_URL:?Set ZHIXING_DATABASE_URL to the 1Panel PostgreSQL URL}
       ZHIXING_MARKET_DATA_CSV_ROOT: /app/data/market-data
+      ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD: ${ZHIXING_MARKET_DATA_COVERAGE_THRESHOLD:-0.99}
+      ZHIXING_MARKET_DATA_MAX_WORKERS: ${ZHIXING_MARKET_DATA_MAX_WORKERS:-8}
+      ZHIXING_MARKET_DATA_MAX_RETRIES: ${ZHIXING_MARKET_DATA_MAX_RETRIES:-3}
+      ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS: ${ZHIXING_MARKET_DATA_RETRY_BACKOFF_SECONDS:-1.0}
+      ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS: ${ZHIXING_MARKET_DATA_REQUEST_INTERVAL_SECONDS:-0.2}
+      ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY: ${ZHIXING_MARKET_DATA_ADVISORY_LOCK_KEY:-7380521}
       ZHIXING_TUSHARE_TOKEN: ${ZHIXING_TUSHARE_TOKEN:-}
     volumes:
       - market-data:/app/data/market-data

docs/market-data-sync.md

@@ -62,6 +62,12 @@ docker compose -f docker-compose.prod.yml --profile jobs run --rm market-sync --
 
 `success` 返回 0；覆盖率低于配置阈值或出现部分失败返回 2；没有可用成功结果或基础设施失败返回 1。CLI 输出不包含 Tushare token 或数据库密码。
 
+行情阶段默认使用 8 路固定 worker；可通过 `ZHIXING_MARKET_DATA_MAX_WORKERS` 调低或调高，取值必须
+至少为 1。每个 worker 从有上限的 PostgreSQL 连接池借用独立连接，主线程批量写入同步审计并通过
+一次集合查询计算覆盖率。所有 worker 共用 Tushare 频控协调器；普通请求保持并发，命中 403、429 或
+“访问频繁”等提示时共享 60/120/180 秒冷却窗口。若供应商频控持续发生，先把 worker 降到 1，再通过
+`--retry-batch-id` 只恢复失败对象。
+
 ## Cron 与重试
 
 宿主机 cron 只负责启动临时容器，不写入容器内部的 crontab。下面的示例每天工作日 18:00 触发；交易日历、唯一约束和 PostgreSQL advisory lock 使周末、节假日、重复触发和重叠触发保持安全：

zhixing-server/migrations/versions/0003_market_integrity_checks.py

@@ -0,0 +1,90 @@
+"""Create independent market-data integrity check and issue tables."""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0003_market_integrity_checks"
+down_revision: str | None = "0002_selection_results"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Create only check metadata; market facts remain untouched."""
+
+    op.create_table(
+        "market_integrity_check",
+        sa.Column("id", sa.String(36), primary_key=True),
+        sa.Column("status", sa.String(24), nullable=False),
+        sa.Column("window_start", sa.Date()),
+        sa.Column("window_end", sa.Date()),
+        sa.Column("target_count", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("checked_count", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("issue_count", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("error_type", sa.String(64)),
+        sa.Column("error_message", sa.Text()),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True)),
+    )
+    op.create_index(
+        "ix_market_integrity_check_status_created_at",
+        "market_integrity_check",
+        ["status", "created_at"],
+    )
+    # A partial unique index makes the running claim atomic under concurrent
+    # POST requests; stale recovery first moves an abandoned row to failed.
+    op.create_index(
+        "uq_market_integrity_check_running",
+        "market_integrity_check",
+        ["status"],
+        unique=True,
+        postgresql_where=sa.text("status = 'running'"),
+    )
+    op.create_table(
+        "market_integrity_issue",
+        sa.Column(
+            "check_id",
+            sa.String(36),
+            sa.ForeignKey("market_integrity_check.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("issue_key", sa.String(64), nullable=False),
+        sa.Column("item_kind", sa.String(24), nullable=False),
+        sa.Column("item_key", sa.String(128), nullable=False),
+        sa.Column("issue_type", sa.String(64), nullable=False),
+        sa.Column("message", sa.Text(), nullable=False),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.PrimaryKeyConstraint("check_id", "issue_key"),
+    )
+    op.create_index("ix_market_integrity_issue_check_id", "market_integrity_issue", ["check_id"])
+
+
+def downgrade() -> None:
+    """Drop only the integrity report tables in dependency-safe order."""
+
+    op.drop_index("ix_market_integrity_issue_check_id", table_name="market_integrity_issue")
+    op.drop_table("market_integrity_issue")
+    op.drop_index("uq_market_integrity_check_running", table_name="market_integrity_check")
+    op.drop_index(
+        "ix_market_integrity_check_status_created_at",
+        table_name="market_integrity_check",
+    )
+    op.drop_table("market_integrity_check")

zhixing-server/pyproject.toml

@@ -9,7 +9,7 @@ dependencies = [
     "fastapi>=0.141.1",
     "numpy>=2.4.0",
     "pandas>=2.3.3",
-    "psycopg[binary]>=3.3.2",
+    "psycopg[binary,pool]>=3.3.2",
     "pydantic-settings>=2.14.2",
     "sqlalchemy>=2.0.46",
     "tushare>=1.4.24",

zhixing-server/src/zhixing_server/bootstrap/config.py

@@ -5,6 +5,7 @@ from functools import lru_cache
 from pathlib import Path
 from typing import Literal
 
+from pydantic import Field
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
@@ -18,7 +19,7 @@ class Settings(BaseSettings):
     tushare_token: str = ""
     market_data_csv_root: Path = Path("./data/market-data")
     market_data_coverage_threshold: Decimal = Decimal("0.99")
-    market_data_max_workers: int = 4
+    market_data_max_workers: int = Field(default=8, ge=1)
     market_data_request_interval_seconds: float = 0.2
     market_data_max_retries: int = 3
     market_data_retry_backoff_seconds: float = 1.0

zhixing-server/src/zhixing_server/interfaces/http/router.py

@@ -4,11 +4,17 @@ from fastapi import APIRouter
 
 from zhixing_server.interfaces.http.system import operational_router, system_router
 from zhixing_server.modules.market_data.presentation.home import home_router
+from zhixing_server.modules.market_data.presentation.integrity import integrity_router
 from zhixing_server.modules.selection.presentation.http import selection_router
 
 api_v1_router = APIRouter(prefix="/api/v1")
 api_v1_router.include_router(system_router, prefix="/system", tags=["system"])
 api_v1_router.include_router(home_router, prefix="/home", tags=["home"])
+api_v1_router.include_router(
+    integrity_router,
+    prefix="/market-data/integrity-checks",
+    tags=["market-data"],
+)
 api_v1_router.include_router(selection_router, prefix="/selection", tags=["selection"])
 
 __all__ = ["api_v1_router", "operational_router"]

zhixing-server/src/zhixing_server/modules/market_data/application/__init__.py

@@ -1,5 +1,12 @@
 """Market data synchronization use cases."""
 
-from .sync import SyncBatchSummary, SyncMarketData, SyncMarketDataCommand
+from .integrity import RunMarketIntegrityCheck
+from .sync import SyncBatchSummary, SyncItemOutcome, SyncMarketData, SyncMarketDataCommand
 
-__all__ = ["SyncBatchSummary", "SyncMarketData", "SyncMarketDataCommand"]
+__all__ = [
+    "RunMarketIntegrityCheck",
+    "SyncBatchSummary",
+    "SyncItemOutcome",
+    "SyncMarketData",
+    "SyncMarketDataCommand",
+]

zhixing-server/src/zhixing_server/modules/market_data/application/integrity.py

@@ -0,0 +1,671 @@
+"""Read-only PostgreSQL/CSV market-data integrity check use case."""
+
+from __future__ import annotations
+
+import logging
+from collections.abc import Callable, Iterable, Iterator, Sequence
+from dataclasses import dataclass, field
+from datetime import date
+from typing import TypeVar, cast
+
+from ..domain.integrity import (
+    IntegrityCheckNoData,
+    IntegrityCheckNotFound,
+    IntegrityCheckPage,
+    IntegrityCheckQuery,
+    IntegrityCheckRun,
+    IntegrityCheckStore,
+    IntegrityIssue,
+    IntegritySnapshotReader,
+    IntegritySnapshotStore,
+)
+from ..domain.models import Bar, DailyBasic, Stock, SyncWindow
+
+logger = logging.getLogger(__name__)
+_ISSUE_BATCH_SIZE = 100
+_DEFAULT_STALE_AFTER_SECONDS = 3_600
+
+T = TypeVar("T")
+
+
+def _empty_issues() -> list[IntegrityIssue]:
+    """Provide an explicitly typed empty issue buffer for Pyright."""
+
+    return []
+
+
+def _empty_issue_keys() -> set[str]:
+    """Provide an explicitly typed empty issue-key set for Pyright."""
+
+    return set()
+
+
+@dataclass(slots=True)
+class _IssueCollector:
+    """Bound issue buffering and count progress without retaining the report."""
+
+    check_id: str
+    store: IntegrityCheckStore
+    issue_count: int = 0
+    pending: list[IntegrityIssue] = field(default_factory=_empty_issues)
+    issue_keys: set[str] = field(default_factory=_empty_issue_keys)
+
+    def add(
+        self,
+        item_kind: str,
+        item_key: str,
+        issue_type: str,
+        message: str,
+    ) -> None:
+        """Add one issue and flush at a bounded batch size."""
+
+        issue = IntegrityIssue.build(
+            self.check_id,
+            item_kind,
+            item_key,
+            issue_type,
+            message,
+        )
+        if issue.issue_key in self.issue_keys:
+            return
+        self.issue_keys.add(issue.issue_key)
+        self.pending.append(issue)
+        self.issue_count += 1
+        if len(self.pending) >= _ISSUE_BATCH_SIZE:
+            self.flush()
+
+    def flush(self) -> None:
+        """Persist buffered issues and release their row objects."""
+
+        if not self.pending:
+            return
+        self.store.record_issues(tuple(self.pending))
+        self.pending.clear()
+
+
+class RunMarketIntegrityCheck:
+    """Prepare, execute, and query a persisted integrity report.
+
+    The application depends only on read ports and an independent check store.
+    It never constructs a Tushare adapter and never receives a market-data
+    write port, which makes the no-fact-mutation boundary explicit.
+    """
+
+    def __init__(
+        self,
+        reader: IntegritySnapshotReader,
+        snapshots: IntegritySnapshotStore,
+        store: IntegrityCheckStore,
+        *,
+        lock_key: int = 7_380_521,
+        stale_after_seconds: int = _DEFAULT_STALE_AFTER_SECONDS,
+    ) -> None:
+        if stale_after_seconds < 1:
+            raise ValueError("stale_after_seconds must be positive")
+        self.reader = reader
+        self.snapshots = snapshots
+        self.store = store
+        self.lock_key = lock_key
+        self.stale_after_seconds = stale_after_seconds
+
+    def prepare(self) -> IntegrityCheckRun:
+        """Atomically claim a check against the newest completed window."""
+
+        self.store.recover_stale_running(self.lock_key, self.stale_after_seconds)
+        window = self.reader.latest_successful_window()
+        if window is None:
+            raise IntegrityCheckNoData("no completed market-data synchronization is available")
+        stocks = tuple(self.reader.active_stocks())
+        target_count = self._target_count(window, stocks)
+        return self.store.create_running(window, target_count)
+
+    def execute(self, check_id: str) -> None:
+        """Run a claimed check and always converge unexpected errors to failed."""
+
+        try:
+            page = self.store.get(check_id, IntegrityCheckQuery(page=1, page_size=1))
+        except Exception as exc:  # noqa: BLE001 - background boundary must converge state
+            self._finish_failed(check_id, 0, "check_error", _safe_error(exc))
+            return
+        if page is None:
+            raise IntegrityCheckNotFound(f"integrity check not found: {check_id}")
+        if page.run.status != "running":
+            return
+        collector = _IssueCollector(check_id, self.store, issue_count=page.run.issue_count)
+        try:
+            with self.reader.advisory_lock(self.lock_key) as acquired:
+                if not acquired:
+                    self._finish_failed(
+                        check_id,
+                        collector.issue_count,
+                        "lock_unavailable",
+                        "market-data synchronization or another integrity check is running",
+                    )
+                    return
+                try:
+                    self._execute_locked(page.run, collector)
+                except Exception as exc:  # noqa: BLE001 - worker boundary must converge state
+                    logger.exception("market_integrity_check_failed check_id=%s", check_id)
+                    self._finish_failed(
+                        check_id,
+                        collector.issue_count,
+                        "check_error",
+                        _safe_error(exc),
+                    )
+        except Exception as exc:  # noqa: BLE001 - lock/storage boundary must be observable
+            logger.exception("market_integrity_check_worker_failed check_id=%s", check_id)
+            self._finish_failed(check_id, collector.issue_count, "check_error", _safe_error(exc))
+
+    def get(
+        self,
+        check_id: str,
+        *,
+        page: int = 1,
+        page_size: int = 10,
+        query: IntegrityCheckQuery | None = None,
+    ) -> IntegrityCheckPage | None:
+        """Read one check and a bounded issue page."""
+
+        resolved = query or IntegrityCheckQuery(page=page, page_size=page_size)
+        return self.store.get(check_id, resolved)
+
+    def get_latest(
+        self,
+        *,
+        page: int = 1,
+        page_size: int = 10,
+        query: IntegrityCheckQuery | None = None,
+    ) -> IntegrityCheckPage | None:
+        """Read the newest check or ``None`` when no check has been run."""
+
+        resolved = query or IntegrityCheckQuery(page=page, page_size=page_size)
+        return self.store.get_latest(resolved)
+
+    def _target_count(self, window: SyncWindow, stocks: Sequence[Stock]) -> int:
+        """Count comparison groups using keys only, never fact rows."""
+
+        bar_codes = set(_string_keys(self.reader, "list_bar_codes", window))
+        bar_codes.update(_string_keys(self.snapshots, "list_bar_codes", window))
+        bar_codes.update(stock.ts_code for stock in stocks)
+        basic_dates = set(_date_keys(self.reader, "list_daily_basic_dates", window))
+        basic_dates.update(_date_keys(self.snapshots, "list_daily_basic_dates", window))
+        return max(1, 1 + len(bar_codes) + len(basic_dates))
+
+    def _execute_locked(self, run: IntegrityCheckRun, collector: _IssueCollector) -> None:
+        """Compare each group and persist progress after it completes."""
+
+        if run.window is None:
+            raise ValueError("integrity check has no comparison window")
+        window = run.window
+        self._compare_stocks(run.id, collector)
+        checked_count = 1
+        collector.flush()
+        self.store.update_progress(run.id, checked_count, collector.issue_count)
+
+        checked_count = self._compare_bars(
+            run.id,
+            window,
+            collector,
+            checked_count,
+        )
+        checked_count = self._compare_daily_basic(
+            run.id,
+            window,
+            collector,
+            checked_count,
+        )
+        collector.flush()
+        self.store.update_progress(run.id, checked_count, collector.issue_count)
+        self.store.finish(
+            run.id,
+            "issues_found" if collector.issue_count else "passed",
+            issue_count=collector.issue_count,
+        )
+
+    def _compare_stocks(self, check_id: str, collector: _IssueCollector) -> None:
+        """Compare current stock master rows as one small bounded group."""
+
+        database_rows = tuple(self.reader.active_stocks())
+        try:
+            csv_rows = self.snapshots.read_stocks()
+        except Exception as exc:  # noqa: BLE001 - one malformed file must not stop other groups
+            collector.add("stock", "current", _issue_type(exc), "stock-master CSV cannot be parsed")
+            return
+        if csv_rows is None:
+            if database_rows:
+                collector.add(
+                    "stock",
+                    "current",
+                    "missing_csv",
+                    "current stock-master CSV is missing",
+                )
+            return
+        database_by_code = {row.ts_code: row for row in database_rows}
+        csv_by_code = {row.ts_code: row for row in csv_rows}
+        for code in sorted(database_by_code.keys() - csv_by_code.keys()):
+            collector.add("stock", code, "missing_csv", "active stock is missing from CSV")
+        for code in sorted(csv_by_code.keys() - database_by_code.keys()):
+            collector.add("stock", code, "extra_csv", "CSV stock is not active in PostgreSQL")
+        for code in sorted(database_by_code.keys() & csv_by_code.keys()):
+            if database_by_code[code] != csv_by_code[code]:
+                collector.add("stock", code, "content_mismatch", "stock-master fields differ")
+
+    def _compare_bars(
+        self,
+        check_id: str,
+        window: SyncWindow,
+        collector: _IssueCollector,
+        checked_count: int,
+    ) -> int:
+        """Merge PostgreSQL and per-stock CSV bars one stock at a time."""
+
+        database_codes = set(_string_keys(self.reader, "list_bar_codes", window))
+        csv_codes = set(_string_keys(self.snapshots, "list_bar_codes", window))
+        expected_codes = (
+            database_codes | csv_codes | {stock.ts_code for stock in self.reader.active_stocks()}
+        )
+        for code in _string_keys(self.reader, "list_invalid_bar_codes", window):
+            collector.add("bar", code, "content_mismatch", "database bar source_adj is not qfq")
+        database_groups = _grouped(self.reader.iter_bars(window), lambda row: row.ts_code)
+        parse_failed_codes: set[str] = set()
+        current = next(database_groups, None)
+        for code in sorted(expected_codes):
+            while current is not None and current[0] < code:
+                self._compare_bar_group(current[0], current[1], None, window, collector)
+                checked_count += 1
+                current = next(database_groups, None)
+                self._progress(collector, checked_count)
+            database_rows: tuple[Bar, ...] | None = None
+            if current is not None and current[0] == code:
+                database_rows = current[1]
+                current = next(database_groups, None)
+            csv_rows = (
+                self._read_bars(code, collector, parse_failed_codes) if code in csv_codes else None
+            )
+            self._compare_bar_group(
+                code,
+                database_rows,
+                csv_rows,
+                window,
+                collector,
+                csv_parse_failed=code in parse_failed_codes,
+            )
+            checked_count += 1
+            self._progress(collector, checked_count)
+        while current is not None:
+            self._compare_bar_group(current[0], current[1], None, window, collector)
+            checked_count += 1
+            current = next(database_groups, None)
+            self._progress(collector, checked_count)
+        return checked_count
+
+    def _compare_daily_basic(
+        self,
+        check_id: str,
+        window: SyncWindow,
+        collector: _IssueCollector,
+        checked_count: int,
+    ) -> int:
+        """Merge PostgreSQL and per-date CSV daily-basic groups."""
+
+        database_dates = set(_date_keys(self.reader, "list_daily_basic_dates", window))
+        csv_dates = set(_date_keys(self.snapshots, "list_daily_basic_dates", window))
+        expected_dates = database_dates | csv_dates
+        database_groups = _grouped(self.reader.iter_daily_basic(window), lambda row: row.trade_date)
+        parse_failed_dates: set[date] = set()
+        invalid_path_method = getattr(
+            self.snapshots, "list_invalid_daily_basic_snapshot_files", None
+        )
+        if callable(invalid_path_method):
+            try:
+                invalid_paths = cast(Iterable[object], invalid_path_method())
+            except Exception:  # noqa: BLE001 - malformed path listing must not abort other groups
+                invalid_paths = ()
+            for value in invalid_paths:
+                if not isinstance(value, tuple):
+                    continue
+                parts = cast(tuple[object, ...], value)
+                if len(parts) != 2:
+                    continue
+                item_key, issue_type = parts
+                collector.add(
+                    "daily_basic",
+                    str(item_key),
+                    str(issue_type) or "parse_error",
+                    "daily-basic snapshot path cannot be parsed",
+                )
+        current = next(database_groups, None)
+        for trade_date in sorted(expected_dates):
+            while current is not None and current[0] < trade_date:
+                self._compare_basic_group(current[0], current[1], None, window, collector)
+                checked_count += 1
+                current = next(database_groups, None)
+                self._progress(collector, checked_count)
+            database_rows: tuple[DailyBasic, ...] | None = None
+            if current is not None and current[0] == trade_date:
+                database_rows = current[1]
+                current = next(database_groups, None)
+            csv_rows = (
+                self._read_daily_basic(trade_date, collector, parse_failed_dates)
+                if trade_date in csv_dates
+                else None
+            )
+            self._compare_basic_group(
+                trade_date,
+                database_rows,
+                csv_rows,
+                window,
+                collector,
+                csv_parse_failed=trade_date in parse_failed_dates,
+            )
+            checked_count += 1
+            self._progress(collector, checked_count)
+        while current is not None:
+            self._compare_basic_group(current[0], current[1], None, window, collector)
+            checked_count += 1
+            current = next(database_groups, None)
+            self._progress(collector, checked_count)
+        return checked_count
+
+    def _read_bars(
+        self,
+        code: str,
+        collector: _IssueCollector,
+        parse_failed_codes: set[str],
+    ) -> tuple[Bar, ...] | None:
+        """Read one formal bar file and isolate its parse failure."""
+
+        try:
+            return self.snapshots.read_bars(code)
+        except Exception as exc:  # noqa: BLE001 - continue with other stocks
+            parse_failed_codes.add(code)
+            collector.add("bar", code, _issue_type(exc), "bar CSV cannot be parsed")
+            return None
+
+    def _read_daily_basic(
+        self,
+        trade_date: date,
+        collector: _IssueCollector,
+        parse_failed_dates: set[date],
+    ) -> tuple[DailyBasic, ...] | None:
+        """Read one formal daily-basic file and isolate its parse failure."""
+
+        try:
+            return self.snapshots.read_daily_basic(trade_date)
+        except Exception as exc:  # noqa: BLE001 - continue with other dates
+            parse_failed_dates.add(trade_date)
+            collector.add(
+                "daily_basic",
+                trade_date.isoformat(),
+                _issue_type(exc),
+                "daily-basic CSV cannot be parsed",
+            )
+            return None
+
+    def _compare_bar_group(
+        self,
+        code: str,
+        database_rows: tuple[Bar, ...] | None,
+        csv_rows: tuple[Bar, ...] | None,
+        window: SyncWindow,
+        collector: _IssueCollector,
+        *,
+        csv_parse_failed: bool = False,
+    ) -> None:
+        """Compare one stock's rows without building a market-wide map."""
+
+        database_inside = self._keep_bar_rows_in_window(
+            "database", code, database_rows, window, collector
+        )
+        if csv_parse_failed:
+            return
+        csv_inside = self._keep_bar_rows_in_window("csv", code, csv_rows, window, collector)
+        if database_inside is None and csv_inside is None:
+            return
+        if database_inside is None:
+            if csv_inside:
+                self._compare_rows(
+                    "bar",
+                    code,
+                    (),
+                    csv_inside,
+                    lambda row: row.trade_date,
+                    window,
+                    collector,
+                    row_date=lambda row: row.trade_date,
+                )
+            return
+        if csv_inside is None:
+            if database_inside:
+                self._compare_rows(
+                    "bar",
+                    code,
+                    database_inside,
+                    (),
+                    lambda row: row.trade_date,
+                    window,
+                    collector,
+                    row_date=lambda row: row.trade_date,
+                )
+            return
+        self._compare_rows(
+            "bar",
+            code,
+            database_inside,
+            csv_inside,
+            lambda row: row.trade_date,
+            window,
+            collector,
+            row_date=lambda row: row.trade_date,
+        )
+
+    @staticmethod
+    def _keep_bar_rows_in_window(
+        source: str,
+        code: str,
+        rows: tuple[Bar, ...] | None,
+        window: SyncWindow,
+        collector: _IssueCollector,
+    ) -> tuple[Bar, ...] | None:
+        """Report and discard out-of-window CSV/DB rows before merging."""
+
+        if rows is None:
+            return None
+        inside: list[Bar] = []
+        for row in rows:
+            if window.contains(row.trade_date):
+                inside.append(row)
+            else:
+                collector.add(
+                    "bar",
+                    f"{code}:{row.trade_date.isoformat()}",
+                    "window_out_of_bounds",
+                    f"{source} bar row is outside the check window",
+                )
+        return tuple(inside)
+
+    def _compare_basic_group(
+        self,
+        trade_date: date,
+        database_rows: tuple[DailyBasic, ...] | None,
+        csv_rows: tuple[DailyBasic, ...] | None,
+        window: SyncWindow,
+        collector: _IssueCollector,
+        *,
+        csv_parse_failed: bool = False,
+    ) -> None:
+        """Compare one trading-day's daily-basic rows."""
+
+        group_key = trade_date.isoformat()
+        if not window.contains(trade_date):
+            collector.add(
+                "daily_basic",
+                group_key,
+                "window_out_of_bounds",
+                "daily-basic date is outside the check window",
+            )
+            return
+        if csv_parse_failed:
+            return
+        if database_rows is None and csv_rows is None:
+            return
+        if database_rows is None:
+            collector.add(
+                "daily_basic",
+                group_key,
+                "extra_csv",
+                "daily-basic date exists only in CSV",
+            )
+            return
+        if csv_rows is None:
+            collector.add(
+                "daily_basic", group_key, "missing_csv", "daily-basic date is missing in CSV"
+            )
+            return
+        self._compare_rows(
+            "daily_basic",
+            group_key,
+            database_rows,
+            csv_rows,
+            lambda row: row.ts_code,
+            window,
+            collector,
+            row_date=lambda row: row.trade_date,
+        )
+
+    def _compare_rows(
+        self,
+        item_kind: str,
+        group_key: str,
+        database_rows: Sequence[T],
+        csv_rows: Sequence[T],
+        key: Callable[[T], object],
+        window: SyncWindow,
+        collector: _IssueCollector,
+        row_date: Callable[[T], date] | None = None,
+    ) -> None:
+        """Merge two bounded groups and report duplicate/content differences."""
+
+        database_by_key, database_duplicates = _index_rows(database_rows, key)
+        csv_by_key, csv_duplicates = _index_rows(csv_rows, key)
+        for row_key in sorted(database_duplicates | csv_duplicates, key=str):
+            collector.add(
+                item_kind,
+                f"{group_key}:{row_key}",
+                "duplicate_key",
+                "comparison group contains duplicate business keys",
+            )
+        for row_key in sorted(database_by_key.keys() | csv_by_key.keys(), key=str):
+            database_row = database_by_key.get(row_key)
+            csv_row = csv_by_key.get(row_key)
+            identity = f"{group_key}:{row_key}"
+            if row_date is not None:
+                for candidate in (database_row, csv_row):
+                    if candidate is not None and not window.contains(row_date(candidate)):
+                        collector.add(
+                            item_kind,
+                            identity,
+                            "window_out_of_bounds",
+                            "row is outside the check window",
+                        )
+            if database_row is None:
+                collector.add(item_kind, identity, "extra_csv", "row exists only in CSV")
+            elif csv_row is None:
+                collector.add(item_kind, identity, "missing_csv", "row is missing in CSV")
+            elif database_row != csv_row:
+                collector.add(
+                    item_kind, identity, "content_mismatch", "database and CSV fields differ"
+                )
+
+    def _progress(self, collector: _IssueCollector, checked_count: int) -> None:
+        """Persist issues and a heartbeat after one comparison group."""
+
+        collector.flush()
+        self.store.update_progress(collector.check_id, checked_count, collector.issue_count)
+
+    def _finish_failed(
+        self,
+        check_id: str,
+        issue_count: int,
+        error_type: str,
+        message: str,
+    ) -> None:
+        """Best-effort terminal write for background worker failures."""
+
+        try:
+            self.store.finish(
+                check_id,
+                "failed",
+                issue_count=issue_count,
+                error_type=error_type,
+                error_message=message,
+            )
+        except Exception:  # noqa: BLE001 - nothing safer can be persisted here
+            logger.exception("market_integrity_check_failure_persist_failed check_id=%s", check_id)
+
+
+def _grouped[T, K](rows: Iterable[T], key: Callable[[T], K]) -> Iterator[tuple[K, tuple[T, ...]]]:
+    """Consume an ordered iterator one comparison group at a time."""
+
+    iterator = iter(rows)
+    pending = next(iterator, None)
+    while pending is not None:
+        group_key = key(pending)
+        group: list[T] = [pending]
+        pending = next(iterator, None)
+        while pending is not None and key(pending) == group_key:
+            group.append(pending)
+            pending = next(iterator, None)
+        yield group_key, tuple(group)
+
+
+def _index_rows[T](
+    rows: Sequence[T], key: Callable[[T], object]
+) -> tuple[dict[object, T], set[object]]:
+    """Index one bounded group and retain duplicate identities only."""
+
+    indexed: dict[object, T] = {}
+    duplicates: set[object] = set()
+    for row in rows:
+        row_key = key(row)
+        if row_key in indexed:
+            duplicates.add(row_key)
+        else:
+            indexed[row_key] = row
+    return indexed, duplicates
+
+
+def _string_keys(adapter: object, method_name: str, window: SyncWindow) -> tuple[str, ...]:
+    """Call an optional string-key method without hiding storage failures."""
+
+    method = getattr(adapter, method_name, None)
+    if not callable(method):
+        return ()
+    values = cast(Iterable[object], method(window))
+    return tuple(str(value) for value in values)
+
+
+def _date_keys(adapter: object, method_name: str, window: SyncWindow) -> tuple[date, ...]:
+    """Call an optional date-key method without hiding storage failures."""
+
+    method = getattr(adapter, method_name, None)
+    if not callable(method):
+        return ()
+    values = cast(Iterable[object], method(window))
+    return tuple(value for value in values if isinstance(value, date))
+
+
+def _issue_type(error: BaseException) -> str:
+    """Use adapter-provided stable issue categories when available."""
+
+    value = getattr(error, "issue_type", "parse_error")
+    return str(value) if value else "parse_error"
+
+
+def _safe_error(error: Exception) -> str:
+    """Keep worker failures bounded and free of tracebacks or secrets."""
+
+    return " ".join(str(error).split())[:500] or error.__class__.__name__
+
+
+__all__ = ["RunMarketIntegrityCheck"]

zhixing-server/src/zhixing_server/modules/market_data/application/sync.py

@@ -4,11 +4,12 @@ from __future__ import annotations
 
 import logging
 import time
-from collections.abc import Iterable, Sequence
+from collections.abc import Callable, Iterable, Sequence
+from concurrent.futures import ThreadPoolExecutor, as_completed
 from dataclasses import dataclass, field
 from datetime import date, timedelta
 from decimal import Decimal
-from typing import Literal
+from typing import Literal, cast
 
 from ..domain.fingerprint import SnapshotChange, compare_snapshots
 from ..domain.models import Bar, Stock, SyncWindow
@@ -40,6 +41,24 @@ class SyncFailure:
     message: str
 
 
+@dataclass(frozen=True, slots=True)
+class SyncItemOutcome:
+    """Immutable result returned by one synchronization item.
+
+    A worker owns all side effects for its stock, then hands only this value
+    back to the coordinating thread.  Keeping audit and aggregate mutation out
+    of the worker makes completion order irrelevant and prevents one failed
+    future from corrupting the batch counters.
+    """
+
+    item_kind: str
+    item_key: str
+    status: Literal["success", "failed"]
+    result: WriteResult = field(default_factory=WriteResult)
+    fingerprint: str | None = None
+    failure: SyncFailure | None = None
+
+
 @dataclass(frozen=True, slots=True)
 class SyncBatchSummary:
     """Stable output contract for CLI, cron, and later strategy callers."""
@@ -63,7 +82,9 @@ class SyncBatchSummary:
 
         if self.status == "failed":
             return 1
-        return 0 if self.strategy_eligible else 2
+        if self.status != "success" or not self.strategy_eligible:
+            return 2
+        return 0
 
     def as_dict(self) -> dict[str, object]:
         """Serialize the summary without credentials or raw vendor responses."""
@@ -107,36 +128,55 @@ class SyncMarketData:
         coverage_threshold: Decimal = Decimal("0.99"),
         lock_key: int = 7_380_521,
         today: date | None = None,
+        max_workers: int = 8,
     ) -> None:
         if not Decimal("0") <= coverage_threshold <= Decimal("1"):
             raise ValueError("coverage_threshold must be between 0 and 1")
+        if max_workers < 1:
+            raise ValueError("max_workers must be at least 1")
         self.source = source
         self.snapshots = snapshots
         self.repository = repository
         self.coverage_threshold = coverage_threshold
         self.lock_key = lock_key
         self.today = today or date.today()
+        self.max_workers = max_workers
 
     def execute(self, command: SyncMarketDataCommand | None = None) -> SyncBatchSummary:
         """Run one synchronization and retain successful items on partial failure."""
 
         command = command or SyncMarketDataCommand()
-        with self.repository.advisory_lock(self.lock_key) as acquired:
+        try:
-            if not acquired:
+            with self.repository.advisory_lock(self.lock_key) as acquired:
-                return SyncBatchSummary(
+                if not acquired:
-                    batch_id=None,
+                    return SyncBatchSummary(
-                    target_trade_date=None,
+                        batch_id=None,
-                    window=None,
+                        target_trade_date=None,
-                    status="failed",
+                        window=None,
-                    target_count=0,
+                        status="failed",
-                    valid_count=0,
+                        target_count=0,
-                    coverage=Decimal("0"),
+                        valid_count=0,
-                    strategy_eligible=False,
+                        coverage=Decimal("0"),
-                    failures=(
+                        strategy_eligible=False,
-                        SyncFailure("batch", "lock", "sync_locked", "another sync is running"),
+                        failures=(
-                    ),
+                            SyncFailure("batch", "lock", "sync_locked", "another sync is running"),
-                )
+                        ),
-            return self._execute_locked(command)
+                    )
+                return self._execute_locked(command)
+        except Exception as exc:
+            # Connection/pool failures while acquiring the advisory lock must
+            # still produce the CLI's infrastructure-failure exit code.
+            return SyncBatchSummary(
+                batch_id=None,
+                target_trade_date=command.target_trade_date,
+                window=None,
+                status="failed",
+                target_count=0,
+                valid_count=0,
+                coverage=Decimal("0"),
+                strategy_eligible=False,
+                failures=(self._failure("batch", "lock", exc),),
+            )
 
     def _execute_locked(self, command: SyncMarketDataCommand) -> SyncBatchSummary:
         started_at = time.monotonic()
@@ -145,7 +185,20 @@ class SyncMarketData:
             command.mode,
             command.target_trade_date or "auto",
         )
-        target_trade_date = self._resolve_target(command.target_trade_date)
+        try:
+            target_trade_date = self._resolve_target(command.target_trade_date)
+        except Exception as exc:
+            return SyncBatchSummary(
+                None,
+                command.target_trade_date,
+                None,
+                "failed",
+                0,
+                0,
+                Decimal("0"),
+                False,
+                failures=(self._failure("batch", "target", exc),),
+            )
         window = SyncWindow.from_target(target_trade_date)
         logger.info(
             "market_data_sync_target target_trade_date=%s window_start=%s window_end=%s",
@@ -153,7 +206,20 @@ class SyncMarketData:
             window.start,
             window.end,
         )
-        all_stocks = filter_current_hs_a_stocks(self.source.fetch_stocks())
+        try:
+            all_stocks = filter_current_hs_a_stocks(self.source.fetch_stocks())
+        except Exception as exc:
+            return SyncBatchSummary(
+                None,
+                target_trade_date,
+                window,
+                "failed",
+                0,
+                0,
+                Decimal("0"),
+                False,
+                failures=(self._failure("stock", "universe", exc),),
+            )
         if not all_stocks:
             return SyncBatchSummary(
                 None,
@@ -168,13 +234,44 @@ class SyncMarketData:
                     SyncFailure("stock", "universe", "empty_universe", "no eligible stocks"),
                 ),
             )
-        batch_id = self.repository.create_batch(
+        try:
-            target_trade_date,
+            retry_items: set[tuple[str, str]] = (
-            window,
+                self._retry_items(command.parent_batch_id) if command.mode == "retry" else set()
-            command.mode,
+            )
-            command.parent_batch_id,
+            dates = self._dates_to_process(window, target_trade_date, command.mode, retry_items)
-            len(all_stocks),
+        except Exception as exc:
-        )
+            return SyncBatchSummary(
+                None,
+                target_trade_date,
+                window,
+                "failed",
+                len(all_stocks),
+                0,
+                Decimal("0"),
+                False,
+                failures=(self._failure("batch", "prepare", exc),),
+            )
+        try:
+            batch_id = self.repository.create_batch(
+                target_trade_date,
+                window,
+                command.mode,
+                command.parent_batch_id,
+                len(all_stocks),
+            )
+        except Exception as exc:
+            failure = self._failure("batch", "create", exc)
+            return SyncBatchSummary(
+                None,
+                target_trade_date,
+                window,
+                "failed",
+                len(all_stocks),
+                0,
+                Decimal("0"),
+                False,
+                failures=(failure,),
+            )
         logger.info(
             "market_data_sync_batch_created batch_id=%s target_count=%d",
             batch_id,
@@ -182,12 +279,19 @@ class SyncMarketData:
         )
         failures: list[SyncFailure] = []
         totals = [0, 0, 0]
+        pending_outcomes: list[SyncItemOutcome] = []
+        audit_failed = False
         stock_codes = {stock.ts_code for stock in all_stocks}
-        retry_items: set[tuple[str, str]] = (
-            self._retry_items(command.parent_batch_id) if command.mode == "retry" else set()
-        )
 
-        self._process_stock_master(batch_id, all_stocks, failures, totals)
+        stock_outcome = self._process_stock_master(all_stocks)
+        audit_failed = self._consume_outcome(
+            batch_id,
+            stock_outcome,
+            pending_outcomes,
+            failures,
+            totals,
+            audit_failed,
+        )
         self._log_progress(
             batch_id=batch_id,
             stage="stock_master",
@@ -199,7 +303,6 @@ class SyncMarketData:
             started_at=started_at,
             force=bool(failures),
         )
-        dates = self._dates_to_process(window, target_trade_date, command.mode, retry_items)
         logger.info(
             "market_data_sync_stage_started batch_id=%s stage=daily_basic total=%d",
             batch_id,
@@ -207,7 +310,19 @@ class SyncMarketData:
         )
         for current, trade_date in enumerate(dates, start=1):
             failure_count = len(failures)
-            self._process_daily_basic(batch_id, trade_date, stock_codes, window, failures, totals)
+            daily_basic_outcome = self._process_daily_basic(
+                trade_date,
+                stock_codes,
+                window,
+            )
+            audit_failed = self._consume_outcome(
+                batch_id,
+                daily_basic_outcome,
+                pending_outcomes,
+                failures,
+                totals,
+                audit_failed,
+            )
             self._log_progress(
                 batch_id=batch_id,
                 stage="daily_basic",
@@ -234,19 +349,55 @@ class SyncMarketData:
             batch_id,
             len(stocks_to_process),
         )
-        for current, stock in enumerate(stocks_to_process, start=1):
+        try:
-            failure_count = len(failures)
+            with ThreadPoolExecutor(
-            self._process_bar(batch_id, stock, window, failures, totals)
+                max_workers=self.max_workers,
-            self._log_progress(
+                thread_name_prefix="market-data-bar",
-                batch_id=batch_id,
+            ) as executor:
-                stage="bar",
+                futures = {
-                current=current,
+                    executor.submit(self._process_bar, stock, window): stock.ts_code
-                total=len(stocks_to_process),
+                    for stock in stocks_to_process
-                item_key=stock.ts_code,
+                }
-                totals=totals,
+                for current, future in enumerate(as_completed(futures), start=1):
-                failures=failures,
+                    item_key = futures[future]
-                started_at=started_at,
+                    failure_count = len(failures)
-                force=len(failures) > failure_count,
+                    try:
+                        bar_outcome = future.result()
+                    except Exception as exc:  # pragma: no cover - defensive future boundary
+                        bar_outcome = SyncItemOutcome(
+                            "bar",
+                            item_key,
+                            "failed",
+                            failure=self._failure("bar", item_key, exc),
+                        )
+                    audit_failed = self._consume_outcome(
+                        batch_id,
+                        bar_outcome,
+                        pending_outcomes,
+                        failures,
+                        totals,
+                        audit_failed,
+                    )
+                    self._log_progress(
+                        batch_id=batch_id,
+                        stage="bar",
+                        current=current,
+                        total=len(stocks_to_process),
+                        item_key=bar_outcome.item_key,
+                        totals=totals,
+                        failures=failures,
+                        started_at=started_at,
+                        force=len(failures) > failure_count,
+                    )
+        except Exception as exc:
+            # Executor construction/submission is a batch-level failure.  Any
+            # facts committed by already completed workers remain committed.
+            failure = self._failure("batch", "executor", exc)
+            failures.append(failure)
+            logger.exception(
+                "market_data_sync_executor_failed batch_id=%s error_type=%s",
+                batch_id,
+                failure.error_type,
             )
         logger.info(
             "market_data_sync_stage_completed batch_id=%s stage=bar total=%d",
@@ -254,32 +405,62 @@ class SyncMarketData:
             len(stocks_to_process),
         )
 
+        if pending_outcomes:
+            audit_failure = self._record_outcomes(batch_id, pending_outcomes)
+            pending_outcomes.clear()
+            if audit_failure is not None and not audit_failed:
+                failures.append(audit_failure)
+                audit_failed = True
+
         if not failures:
             try:
                 self.repository.purge_before(window)
                 self.snapshots.clean_daily_basic_before(window.start)
-            except (OSError, RuntimeError, TypeError, ValueError) as exc:
+            except Exception as exc:
                 failure = self._failure("batch", "retention", exc)
                 failures.append(failure)
-                self.repository.record_item(
+                audit_failure = self._record_outcomes(
                     batch_id,
-                    "batch",
+                    [
-                    "retention",
+                        SyncItemOutcome(
-                    "failed",
+                            "batch",
-                    WriteResult(),
+                            "retention",
-                    error_type=failure.error_type,
+                            "failed",
-                    error_message=failure.message,
+                            failure=failure,
+                        )
+                    ],
                 )
-        valid_count = sum(
+                if audit_failure is not None and not audit_failed:
-            1
+                    failures.append(audit_failure)
-            for stock in all_stocks
+                    audit_failed = True
-            if self.repository.has_bar(stock.ts_code, target_trade_date)
+        try:
-            and self.repository.has_daily_basic(stock.ts_code, target_trade_date)
+            count_valid_stocks = getattr(self.repository, "count_valid_stocks", None)
-        )
+            if callable(count_valid_stocks):
+                count_fn = cast(Callable[[date], int], count_valid_stocks)
+                valid_count = int(count_fn(target_trade_date))
+            else:
+                # Compatibility fallback for older in-memory adapters.  The
+                # PostgreSQL adapter always takes the set-based path above.
+                valid_count = sum(
+                    1
+                    for stock in all_stocks
+                    if self.repository.has_bar(stock.ts_code, target_trade_date)
+                    and self.repository.has_daily_basic(stock.ts_code, target_trade_date)
+                )
+        except Exception as exc:
+            failure = self._failure("batch", "coverage", exc)
+            failures.append(failure)
+            valid_count = 0
         coverage = Decimal(valid_count) / Decimal(len(all_stocks))
         status = "success" if not failures else "partial_success" if valid_count else "failed"
         eligible = coverage >= self.coverage_threshold
-        self.repository.record_batch(batch_id, status, valid_count, coverage, eligible)
+        try:
+            self.repository.record_batch(batch_id, status, valid_count, coverage, eligible)
+        except Exception as exc:
+            failure = self._failure("batch", "record", exc)
+            failures.append(failure)
+            status = "failed"
+            eligible = False
         logger.info(
             "market_data_sync_finished batch_id=%s status=%s target_count=%d valid_count=%d "
             "coverage=%s failures=%d inserted=%d updated=%d unchanged=%d elapsed_seconds=%.1f",
@@ -294,6 +475,12 @@ class SyncMarketData:
             totals[2],
             time.monotonic() - started_at,
         )
+        ordered_failures = tuple(
+            sorted(
+                failures,
+                key=lambda failure: (failure.item_kind, failure.item_key, failure.error_type),
+            )
+        )
         return SyncBatchSummary(
             batch_id,
             target_trade_date,
@@ -306,7 +493,7 @@ class SyncMarketData:
             totals[0],
             totals[1],
             totals[2],
-            tuple(failures),
+            ordered_failures,
         )
 
     def _resolve_target(self, requested: date | None) -> date:
@@ -346,57 +533,37 @@ class SyncMarketData:
 
     def _process_stock_master(
         self,
-        batch_id: str,
         stocks: Sequence[Stock],
-        failures: list[SyncFailure],
+    ) -> SyncItemOutcome:
-        totals: list[int],
-    ) -> None:
         staged = None
         try:
             staged = self.snapshots.stage_stocks(stocks)
             result = self.repository.upsert_stocks(stocks)
             self.snapshots.publish(staged)
-            totals[0] += result.inserted
+            return SyncItemOutcome(
-            totals[1] += result.updated
-            totals[2] += result.unchanged
-            self.repository.record_item(
-                batch_id,
                 "stock",
                 "current",
                 "success",
                 result,
                 staged.fingerprint,
             )
-        except (OSError, RuntimeError, TypeError, ValueError) as exc:
+        except Exception as exc:
             if staged is not None:
                 self.snapshots.discard(staged)
             failure = self._failure("stock", "current", exc)
-            failures.append(failure)
+            return SyncItemOutcome(
-            logger.warning(
-                "market_data_sync_item_failed batch_id=%s stage=stock_master item=current "
-                "error_type=%s",
-                batch_id,
-                failure.error_type,
-            )
-            self.repository.record_item(
-                batch_id,
                 "stock",
                 "current",
                 "failed",
-                WriteResult(),
+                failure=failure,
-                error_type=failure.error_type,
-                error_message=failure.message,
             )
 
     def _process_daily_basic(
         self,
-        batch_id: str,
         trade_date: date,
         stock_codes: set[str],
         window: SyncWindow,
-        failures: list[SyncFailure],
+    ) -> SyncItemOutcome:
-        totals: list[int],
-    ) -> None:
         staged = None
         key = trade_date.isoformat()
         try:
@@ -410,50 +577,35 @@ class SyncMarketData:
             staged = self.snapshots.stage_daily_basic(trade_date, rows)
             result = self.repository.upsert_daily_basic(rows, window)
             self.snapshots.publish(staged)
-            self._add_counts(totals, result)
+            return SyncItemOutcome(
-            self.repository.record_item(
-                batch_id,
                 "daily_basic",
                 key,
                 "success",
                 result,
                 staged.fingerprint,
             )
-        except (OSError, RuntimeError, TypeError, ValueError) as exc:
+        except Exception as exc:
             if staged is not None:
                 self.snapshots.discard(staged)
             failure = self._failure("daily_basic", key, exc)
-            failures.append(failure)
+            return SyncItemOutcome(
-            logger.warning(
-                "market_data_sync_item_failed batch_id=%s stage=daily_basic item=%s error_type=%s",
-                batch_id,
-                key,
-                failure.error_type,
-            )
-            self.repository.record_item(
-                batch_id,
                 "daily_basic",
                 key,
                 "failed",
-                WriteResult(),
+                failure=failure,
-                error_type=failure.error_type,
-                error_message=failure.message,
             )
 
     def _process_bar(
         self,
-        batch_id: str,
         stock: Stock,
         window: SyncWindow,
-        failures: list[SyncFailure],
+    ) -> SyncItemOutcome:
-        totals: list[int],
-    ) -> None:
         staged = None
         try:
             rows = tuple(self.source.fetch_bars(stock.ts_code, window))
+            staged = self.snapshots.stage_bars(stock.ts_code, rows)
             old_rows = self.snapshots.read_bars(stock.ts_code)
             comparison = compare_snapshots(old_rows, rows)
-            staged = self.snapshots.stage_bars(stock.ts_code, rows)
             if comparison.change is SnapshotChange.UNCHANGED:
                 result = WriteResult(unchanged=len(rows))
             else:
@@ -468,34 +620,22 @@ class SyncMarketData:
                     in {SnapshotChange.INITIAL, SnapshotChange.CHANGED},
                 )
             self.snapshots.publish(staged)
-            self._add_counts(totals, result)
+            return SyncItemOutcome(
-            self.repository.record_item(
-                batch_id,
                 "bar",
                 stock.ts_code,
                 "success",
                 result,
                 staged.fingerprint,
             )
-        except (OSError, RuntimeError, TypeError, ValueError) as exc:
+        except Exception as exc:
             if staged is not None:
                 self.snapshots.discard(staged)
             failure = self._failure("bar", stock.ts_code, exc)
-            failures.append(failure)
+            return SyncItemOutcome(
-            logger.warning(
-                "market_data_sync_item_failed batch_id=%s stage=bar item=%s error_type=%s",
-                batch_id,
-                stock.ts_code,
-                failure.error_type,
-            )
-            self.repository.record_item(
-                batch_id,
                 "bar",
                 stock.ts_code,
                 "failed",
-                WriteResult(),
+                failure=failure,
-                error_type=failure.error_type,
-                error_message=failure.message,
             )
 
     @staticmethod
@@ -504,6 +644,68 @@ class SyncMarketData:
         totals[1] += result.updated
         totals[2] += result.unchanged
 
+    def _consume_outcome(
+        self,
+        batch_id: str,
+        outcome: SyncItemOutcome,
+        pending_outcomes: list[SyncItemOutcome],
+        failures: list[SyncFailure],
+        totals: list[int],
+        audit_failed: bool,
+    ) -> bool:
+        """Aggregate one completed item and flush audit rows in bounded batches."""
+
+        if outcome.failure is not None:
+            failures.append(outcome.failure)
+            logger.warning(
+                "market_data_sync_item_failed batch_id=%s stage=%s item=%s error_type=%s",
+                batch_id,
+                outcome.item_kind,
+                outcome.item_key,
+                outcome.failure.error_type,
+            )
+        else:
+            self._add_counts(totals, outcome.result)
+        pending_outcomes.append(outcome)
+        if len(pending_outcomes) < _PROGRESS_LOG_INTERVAL:
+            return audit_failed
+        audit_failure = self._record_outcomes(batch_id, pending_outcomes)
+        pending_outcomes.clear()
+        if audit_failure is not None and not audit_failed:
+            failures.append(audit_failure)
+            return True
+        return audit_failed
+
+    def _record_outcomes(
+        self,
+        batch_id: str,
+        outcomes: Sequence[SyncItemOutcome],
+    ) -> SyncFailure | None:
+        """Persist a batch of audit outcomes, with a legacy adapter fallback."""
+
+        if not outcomes:
+            return None
+        try:
+            record_items = getattr(self.repository, "record_items", None)
+            if callable(record_items):
+                record_items(batch_id, tuple(outcomes))
+            else:
+                for outcome in outcomes:
+                    failure = outcome.failure
+                    self.repository.record_item(
+                        batch_id,
+                        outcome.item_kind,
+                        outcome.item_key,
+                        outcome.status,
+                        outcome.result,
+                        outcome.fingerprint,
+                        failure.error_type if failure else None,
+                        failure.message if failure else None,
+                    )
+        except Exception as exc:
+            return self._failure("batch", "audit", exc)
+        return None
+
     @staticmethod
     def _log_progress(
         *,

zhixing-server/src/zhixing_server/modules/market_data/domain/__init__.py

@@ -1,12 +1,32 @@
 """Pure market data domain types and ports."""
 
 from .fingerprint import SnapshotChange, SnapshotComparison, compare_snapshots, snapshot_fingerprint
+from .integrity import (
+    IntegrityCheckInProgress,
+    IntegrityCheckNoData,
+    IntegrityCheckNotFound,
+    IntegrityCheckPage,
+    IntegrityCheckQuery,
+    IntegrityCheckRun,
+    IntegrityCheckStoreError,
+    IntegrityIssue,
+    IntegrityStatus,
+)
 from .models import Bar, DailyBasic, Stock, SyncWindow
 from .rules import filter_current_hs_a_stocks, is_current_hs_a_stock
 
 __all__ = [
     "Bar",
     "DailyBasic",
+    "IntegrityCheckInProgress",
+    "IntegrityCheckNoData",
+    "IntegrityCheckNotFound",
+    "IntegrityCheckPage",
+    "IntegrityCheckQuery",
+    "IntegrityCheckRun",
+    "IntegrityCheckStoreError",
+    "IntegrityIssue",
+    "IntegrityStatus",
     "SnapshotChange",
     "SnapshotComparison",
     "Stock",

zhixing-server/src/zhixing_server/modules/market_data/domain/integrity.py

@@ -0,0 +1,187 @@
+"""Domain contracts for read-only market-data integrity checks."""
+
+from __future__ import annotations
+
+from collections.abc import Iterable, Sequence
+from contextlib import AbstractContextManager
+from dataclasses import dataclass
+from datetime import date, datetime
+from hashlib import sha256
+from typing import Literal, Protocol
+
+from .models import Bar, DailyBasic, Stock, SyncWindow
+
+IntegrityStatus = Literal["running", "passed", "issues_found", "failed"]
+
+
+class IntegrityCheckInProgress(RuntimeError):
+    """Raised when an integrity check is already running."""
+
+
+class IntegrityCheckNoData(RuntimeError):
+    """Raised when no completed market-data window is available to check."""
+
+
+class IntegrityCheckNotFound(RuntimeError):
+    """Raised when a requested check id does not exist."""
+
+
+class IntegrityCheckStoreError(RuntimeError):
+    """Raised when check metadata or issue records cannot be read or written."""
+
+
+@dataclass(frozen=True, slots=True)
+class IntegrityIssue:
+    """One stable, safe integrity discrepancy.
+
+    ``issue_key`` is derived from the object and issue category instead of a
+    provider error string.  This keeps pagination and retries deterministic
+    while allowing the human-readable message to evolve independently.
+    """
+
+    check_id: str
+    issue_key: str
+    item_kind: str
+    item_key: str
+    issue_type: str
+    message: str
+    created_at: datetime | None = None
+
+    @classmethod
+    def build(
+        cls,
+        check_id: str,
+        item_kind: str,
+        item_key: str,
+        issue_type: str,
+        message: str,
+    ) -> IntegrityIssue:
+        """Build a deterministic issue key from stable comparison identity."""
+
+        identity = "\x00".join((item_kind, item_key, issue_type)).encode("utf-8")
+        issue_key = sha256(identity).hexdigest()
+        return cls(
+            check_id=check_id,
+            issue_key=issue_key,
+            item_kind=item_kind,
+            item_key=item_key,
+            issue_type=issue_type,
+            message=" ".join(message.split())[:500],
+        )
+
+
+@dataclass(frozen=True, slots=True)
+class IntegrityCheckRun:
+    """Persisted progress and terminal state for one integrity check."""
+
+    id: str
+    status: IntegrityStatus
+    window: SyncWindow | None
+    target_count: int
+    checked_count: int = 0
+    issue_count: int = 0
+    error_type: str | None = None
+    error_message: str | None = None
+    created_at: datetime | None = None
+    finished_at: datetime | None = None
+
+    @property
+    def window_start(self) -> date | None:
+        """Return the inclusive window start for response adapters."""
+
+        return self.window.start if self.window is not None else None
+
+    @property
+    def window_end(self) -> date | None:
+        """Return the inclusive window end for response adapters."""
+
+        return self.window.end if self.window is not None else None
+
+
+@dataclass(frozen=True, slots=True)
+class IntegrityCheckQuery:
+    """Validated issue pagination passed from HTTP or another caller."""
+
+    page: int = 1
+    page_size: int = 10
+
+    def __post_init__(self) -> None:
+        if self.page < 1:
+            raise ValueError("page must be at least 1")
+        if not 1 <= self.page_size <= 100:
+            raise ValueError("page_size must be between 1 and 100")
+
+
+@dataclass(frozen=True, slots=True)
+class IntegrityCheckPage:
+    """One check run plus a bounded page of persisted issues."""
+
+    run: IntegrityCheckRun
+    page: int
+    page_size: int
+    issues_total: int
+    issues: tuple[IntegrityIssue, ...] = ()
+
+    @property
+    def check(self) -> IntegrityCheckRun:
+        """Alias used by callers that name the aggregate ``check``."""
+
+        return self.run
+
+
+class IntegritySnapshotReader(Protocol):
+    """Read-only PostgreSQL and CSV comparison input port."""
+
+    def latest_successful_window(self) -> SyncWindow | None: ...
+
+    def active_stocks(self) -> Sequence[Stock]: ...
+
+    def iter_bars(self, window: SyncWindow) -> Iterable[Bar]: ...
+
+    def iter_daily_basic(self, window: SyncWindow) -> Iterable[DailyBasic]: ...
+
+    def list_bar_codes(self, window: SyncWindow) -> Sequence[str]: ...
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> Sequence[date]: ...
+
+    def advisory_lock(self, key: int) -> AbstractContextManager[bool]: ...
+
+
+class IntegritySnapshotStore(Protocol):
+    """Read-only formal CSV snapshot port."""
+
+    def read_stocks(self) -> tuple[Stock, ...] | None: ...
+
+    def read_bars(self, ts_code: str) -> tuple[Bar, ...] | None: ...
+
+    def read_daily_basic(self, trade_date: date) -> tuple[DailyBasic, ...] | None: ...
+
+    def list_bar_codes(self, window: SyncWindow) -> Sequence[str]: ...
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> Sequence[date]: ...
+
+
+class IntegrityCheckStore(Protocol):
+    """Persistence port that writes only integrity metadata and issues."""
+
+    def recover_stale_running(self, lock_key: int, stale_after_seconds: int) -> int: ...
+
+    def create_running(self, window: SyncWindow, target_count: int) -> IntegrityCheckRun: ...
+
+    def update_progress(self, check_id: str, checked_count: int, issue_count: int) -> None: ...
+
+    def record_issues(self, issues: Iterable[IntegrityIssue]) -> None: ...
+
+    def finish(
+        self,
+        check_id: str,
+        status: IntegrityStatus,
+        *,
+        issue_count: int,
+        error_type: str | None = None,
+        error_message: str | None = None,
+    ) -> None: ...
+
+    def get(self, check_id: str, query: IntegrityCheckQuery) -> IntegrityCheckPage | None: ...
+
+    def get_latest(self, query: IntegrityCheckQuery) -> IntegrityCheckPage | None: ...

zhixing-server/src/zhixing_server/modules/market_data/domain/models.py

@@ -46,6 +46,8 @@ def decimal_text(value: Decimal | None) -> str:
 
     if value is None:
         return ""
+    if not value.is_finite():
+        raise ValueError("numeric value must be finite")
     text = format(value, "f")
     if "." in text:
         text = text.rstrip("0").rstrip(".")

zhixing-server/src/zhixing_server/modules/market_data/domain/ports.py

@@ -124,3 +124,17 @@ class MarketDataRepository(Protocol):
     def failed_items(self, parent_batch_id: str) -> tuple[tuple[str, str], ...]: ...
 
     def advisory_lock(self, key: int) -> AbstractContextManager[bool]: ...
+
+
+class MarketDataBatchRepository(Protocol):
+    """Optional batch APIs used by the optimized PostgreSQL adapter.
+
+    Keeping these methods in a refinement protocol preserves compatibility
+    with small in-memory repositories used by legacy application tests.  The
+    production PostgreSQL repository implements both this protocol and
+    ``MarketDataRepository``.
+    """
+
+    def count_valid_stocks(self, trade_date: date) -> int: ...
+
+    def record_items(self, batch_id: str, outcomes: Iterable[object]) -> None: ...

zhixing-server/src/zhixing_server/modules/market_data/infrastructure/csv_snapshot.py

@@ -55,12 +55,50 @@ STOCK_COLUMNS = ("ts_code", "name", "market", "exchange", "list_status", "list_d
 _DAILY_DECIMAL_FIELDS = DAILY_BASIC_COLUMNS[2:]
 
 
+class SnapshotReadError(ValueError):
+    """A formal CSV could not be parsed without exposing file internals."""
+
+    issue_type = "parse_error"
+
+
+class SnapshotDuplicateKeyError(SnapshotReadError):
+    """A formal CSV contains more than one row for a business key."""
+
+    issue_type = "duplicate_key"
+
+
+class SnapshotWindowError(SnapshotReadError):
+    """A CSV path or row does not match its declared snapshot window."""
+
+    issue_type = "window_out_of_bounds"
+
+
 def _code_path(ts_code: str) -> str:
     if not _SAFE_CODE.fullmatch(ts_code):
         raise ValueError(f"unsupported stock code: {ts_code!r}")
     return ts_code
 
 
+def _require_header(fieldnames: Iterable[str] | None, expected: tuple[str, ...]) -> None:
+    """Reject schema drift before a row can be mistaken for valid data."""
+
+    if tuple(fieldnames or ()) != expected:
+        raise SnapshotReadError("snapshot header does not match the market-data contract")
+
+
+def _date_from_snapshot_path(path: Path) -> date:
+    """Parse ``daily-basic/YYYY/YYYYMMDD.csv`` path components."""
+
+    if path.parent.parent.name == "daily-basic" and len(path.parent.name) == 4:
+        text = path.stem
+        if len(text) == 8 and text.isdigit() and text[:4] == path.parent.name:
+            try:
+                return date.fromisoformat(f"{text[:4]}-{text[4:6]}-{text[6:]}")
+            except ValueError as exc:
+                raise SnapshotWindowError("daily-basic path contains an invalid date") from exc
+    raise SnapshotWindowError("daily-basic path does not match the formal layout")
+
+
 def _bar_row(row: Bar) -> dict[str, str]:
     return {
         "ts_code": row.ts_code,
@@ -125,19 +163,139 @@ class CsvSnapshotStore:
 
         return self.root / "stock-basic" / "current.csv"
 
+    def list_bar_snapshot_files(self) -> tuple[Path, ...]:
+        """List formal bar files without opening or creating any file."""
+
+        root = self.root / "bars"
+        if not root.exists():
+            return ()
+        return tuple(sorted(root.glob("*.csv"), key=lambda path: path.name))
+
+    def list_daily_basic_snapshot_files(self) -> tuple[Path, ...]:
+        """List formal daily-basic files without loading their rows."""
+
+        root = self.root / "daily-basic"
+        if not root.exists():
+            return ()
+        return tuple(sorted(root.glob("*/*.csv"), key=lambda path: str(path)))
+
+    def list_bar_codes(self, window: object | None = None) -> tuple[str, ...]:
+        """Return stock codes represented by formal bar paths.
+
+        The optional window is accepted for the integrity reader protocol; the
+        path itself has no date, so row-level window validation happens while
+        the file is read.
+        """
+
+        del window
+        return tuple(path.stem for path in self.list_bar_snapshot_files())
+
+    def list_daily_basic_dates(self, window: object | None = None) -> tuple[date, ...]:
+        """Return parseable dates represented by formal daily-basic paths."""
+
+        del window
+        result: list[date] = []
+        for path in self.list_daily_basic_snapshot_files():
+            try:
+                result.append(_date_from_snapshot_path(path))
+            except ValueError:
+                continue
+        return tuple(sorted(set(result)))
+
+    def list_invalid_daily_basic_snapshot_files(self) -> tuple[tuple[str, str], ...]:
+        """Return malformed daily-basic paths without opening their contents.
+
+        A path that cannot identify a valid ``YYYY/YYYYMMDD`` date is itself
+        an integrity discrepancy.  The normal date listing intentionally
+        skips such paths so callers can still inspect every valid date; the
+        integrity application consumes this explicit error listing separately.
+        """
+
+        errors: list[tuple[str, str]] = []
+        for path in self.list_daily_basic_snapshot_files():
+            try:
+                _date_from_snapshot_path(path)
+            except SnapshotReadError as exc:
+                relative_path = path.relative_to(self.root).as_posix()
+                errors.append((relative_path, getattr(exc, "issue_type", "parse_error")))
+        return tuple(errors)
+
     def read_bars(self, ts_code: str) -> tuple[Bar, ...] | None:
         """Read the current formal snapshot, returning ``None`` if absent."""
 
         path = self.bars_path(ts_code)
         if not path.exists():
             return None
-        with path.open(newline="", encoding="utf-8") as handle:
+        try:
-            reader = csv.DictReader(handle)
+            with path.open(newline="", encoding="utf-8") as handle:
-            if tuple(reader.fieldnames or ()) != BAR_COLUMNS:
+                reader = csv.DictReader(handle)
-                raise ValueError(f"unexpected bar CSV header: {path}")
+                _require_header(reader.fieldnames, BAR_COLUMNS)
-            rows = tuple(Bar.from_mapping(row) for row in reader)
+                rows = tuple(Bar.from_mapping(row) for row in reader)
+        except SnapshotReadError:
+            raise
+        except (OSError, csv.Error, TypeError, ValueError) as exc:
+            raise SnapshotReadError(f"bar snapshot cannot be parsed for {ts_code}") from exc
+        if not rows:
+            raise SnapshotReadError(f"bar snapshot is empty for {ts_code}")
+        keys = [(row.ts_code, row.trade_date) for row in rows]
+        if any(row.ts_code != ts_code for row in rows):
+            raise SnapshotReadError(f"bar snapshot contains an unexpected stock code: {ts_code}")
+        if len(keys) != len(set(keys)):
+            raise SnapshotDuplicateKeyError(f"bar snapshot contains duplicate keys: {ts_code}")
         return tuple(sorted(rows, key=lambda row: row.trade_date))
 
+    def read_stocks(self) -> tuple[Stock, ...] | None:
+        """Read the formal current stock-master file without publishing."""
+
+        path = self.stock_basic_path
+        if not path.exists():
+            return None
+        try:
+            with path.open(newline="", encoding="utf-8") as handle:
+                reader = csv.DictReader(handle)
+                _require_header(reader.fieldnames, STOCK_COLUMNS)
+                rows = tuple(Stock.from_mapping(row) for row in reader)
+        except SnapshotReadError:
+            raise
+        except (OSError, csv.Error, TypeError, ValueError) as exc:
+            raise SnapshotReadError("stock-master snapshot cannot be parsed") from exc
+        if not rows:
+            raise SnapshotReadError("stock-master snapshot is empty")
+        keys = [row.ts_code for row in rows]
+        if len(keys) != len(set(keys)):
+            raise SnapshotDuplicateKeyError("stock-master snapshot contains duplicate codes")
+        return tuple(sorted(rows, key=lambda row: row.ts_code))
+
+    def read_daily_basic(self, trade_date: date) -> tuple[DailyBasic, ...] | None:
+        """Read one formal daily-basic date snapshot without side effects."""
+
+        path = self.daily_basic_path(trade_date)
+        if not path.exists():
+            return None
+        try:
+            with path.open(newline="", encoding="utf-8") as handle:
+                reader = csv.DictReader(handle)
+                _require_header(reader.fieldnames, DAILY_BASIC_COLUMNS)
+                rows = tuple(DailyBasic.from_mapping(row) for row in reader)
+        except SnapshotReadError:
+            raise
+        except (OSError, csv.Error, TypeError, ValueError) as exc:
+            raise SnapshotReadError(
+                f"daily-basic snapshot cannot be parsed for {trade_date}"
+            ) from exc
+        if not rows:
+            raise SnapshotReadError(f"daily-basic snapshot is empty for {trade_date}")
+        keys = [(row.ts_code, row.trade_date) for row in rows]
+        if any(row.trade_date != trade_date for row in rows):
+            raise SnapshotWindowError(
+                f"daily-basic snapshot contains an unexpected date: {trade_date}"
+            )
+        if len(keys) != len(set(keys)):
+            raise SnapshotDuplicateKeyError(
+                f"daily-basic snapshot contains duplicate keys: {trade_date}"
+            )
+        return tuple(sorted(rows, key=lambda row: row.ts_code))
+
     def stage_bars(self, ts_code: str, rows: Iterable[Bar]) -> StagedSnapshot:
         """Validate and write a temporary bar snapshot."""
 
@@ -146,7 +304,15 @@ class CsvSnapshotStore:
             raise ValueError("bar snapshot must be non-empty and belong to one stock")
         final_path = self.bars_path(ts_code)
         temp_path = self._write_csv(final_path, BAR_COLUMNS, (_bar_row(row) for row in normalized))
-        return StagedSnapshot(temp_path, final_path, snapshot_fingerprint(normalized))
+        try:
+            fingerprint = snapshot_fingerprint(normalized)
+        except BaseException:
+            # The CSV has already been fully staged, so validation failures
+            # (for example an invalid OHLC relation) must not leave a hidden
+            # temporary file behind for a later run to mistake for a snapshot.
+            temp_path.unlink(missing_ok=True)
+            raise
+        return StagedSnapshot(temp_path, final_path, fingerprint)
 
     def stage_daily_basic(self, trade_date: date, rows: Iterable[DailyBasic]) -> StagedSnapshot:
         """Validate and stage one daily-basic date snapshot."""

zhixing-server/src/zhixing_server/modules/market_data/infrastructure/integrity.py

@@ -0,0 +1,422 @@
+"""PostgreSQL and CSV seams used by the read-only integrity application."""
+
+from __future__ import annotations
+
+from collections.abc import Generator, Iterable
+from contextlib import contextmanager
+from datetime import date
+from typing import Any, Protocol, cast
+from uuid import uuid4
+
+import psycopg
+
+from ..domain.integrity import (
+    IntegrityCheckInProgress,
+    IntegrityCheckPage,
+    IntegrityCheckQuery,
+    IntegrityCheckRun,
+    IntegrityCheckStoreError,
+    IntegrityIssue,
+    IntegrityStatus,
+)
+from ..domain.models import Bar, DailyBasic, Stock, SyncWindow
+from ..domain.ports import MarketDataRepositoryError
+
+
+class _PostgresRepository(Protocol):
+    """Small structural seam shared with the existing pooled repository."""
+
+    def connection(self) -> Any: ...
+
+    def open(self) -> None: ...
+
+    def close(self) -> None: ...
+
+    def advisory_lock(self, key: int) -> Any: ...
+
+    def latest_successful_window(self) -> SyncWindow | None: ...
+
+    def active_stocks(self) -> tuple[Stock, ...]: ...
+
+    def iter_bars(self, window: SyncWindow) -> Iterable[Bar]: ...
+
+    def iter_daily_basic(self, window: SyncWindow) -> Iterable[DailyBasic]: ...
+
+    def list_bar_codes(self, window: SyncWindow) -> tuple[str, ...]: ...
+
+    def list_invalid_bar_codes(self, window: SyncWindow) -> tuple[str, ...]: ...
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> tuple[date, ...]: ...
+
+
+class PostgresIntegritySnapshotReader:
+    """Expose the existing repository's read-only integrity operations."""
+
+    def __init__(self, repository: _PostgresRepository | str, *, max_connections: int = 10) -> None:
+        if isinstance(repository, str):
+            # Keep the import lazy: ``postgres.py`` re-exports this adapter for
+            # compatibility, so importing it at module load time would cycle.
+            from .postgres import PostgresMarketDataRepository
+
+            self.repository: _PostgresRepository = PostgresMarketDataRepository(
+                repository,
+                max_connections=max_connections,
+            )
+        else:
+            self.repository = repository
+
+    def open(self) -> None:
+        """Open the underlying pool when this reader owns a URL-backed one."""
+
+        self.repository.open()
+
+    def close(self) -> None:
+        """Close the underlying pool when this reader owns a URL-backed one."""
+
+        self.repository.close()
+
+    def latest_successful_window(self) -> SyncWindow | None:
+        """Return the newest completed synchronization window."""
+
+        return self.repository.latest_successful_window()
+
+    def active_stocks(self) -> tuple[Stock, ...]:
+        """Return the active stock master in deterministic order."""
+
+        return self.repository.active_stocks()
+
+    def iter_bars(self, window: SyncWindow) -> Iterable[Bar]:
+        """Return a streaming bar iterator."""
+
+        return self.repository.iter_bars(window)
+
+    def iter_daily_basic(self, window: SyncWindow) -> Iterable[DailyBasic]:
+        """Return a streaming daily-basic iterator."""
+
+        return self.repository.iter_daily_basic(window)
+
+    def list_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        """Return bar group keys without reading their rows."""
+
+        return self.repository.list_bar_codes(window)
+
+    def list_invalid_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        """Return bar groups whose stored adjustment source is not qfq."""
+
+        return self.repository.list_invalid_bar_codes(window)
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> tuple[date, ...]:
+        """Return daily-basic group keys without reading their rows."""
+
+        return self.repository.list_daily_basic_dates(window)
+
+    def advisory_lock(self, key: int) -> Any:
+        """Use exactly the same connection-bound advisory lock as sync."""
+
+        return self.repository.advisory_lock(key)
+
+
+class PostgresIntegrityCheckStore:
+    """Persist integrity progress and issues through the shared pool.
+
+    The store deliberately has no methods that write market facts.  Its only
+    mutation surface is the two ``market_integrity_*`` tables.
+    """
+
+    def __init__(self, repository: _PostgresRepository | str, *, max_connections: int = 10) -> None:
+        if isinstance(repository, str):
+            from .postgres import PostgresMarketDataRepository
+
+            self.repository: _PostgresRepository = PostgresMarketDataRepository(
+                repository,
+                max_connections=max_connections,
+            )
+        else:
+            self.repository = repository
+
+    def open(self) -> None:
+        """Open the underlying pool."""
+
+        self.repository.open()
+
+    def close(self) -> None:
+        """Close the underlying pool."""
+
+        self.repository.close()
+
+    def recover_stale_running(self, lock_key: int, stale_after_seconds: int) -> int:
+        """Mark old workers failed only while the shared lock is available."""
+
+        if stale_after_seconds < 1:
+            raise ValueError("stale_after_seconds must be positive")
+        try:
+            with self._connection() as connection:
+                acquired = False
+                count = 0
+                try:
+                    with connection.transaction():
+                        acquired_row = connection.execute(
+                            "SELECT pg_try_advisory_lock(%s)",
+                            (lock_key,),
+                        ).fetchone()
+                        acquired = bool(acquired_row[0]) if acquired_row is not None else False
+                        if acquired:
+                            result = connection.execute(
+                                """
+                                UPDATE market_integrity_check
+                                SET status = 'failed',
+                                    error_type = 'stale_worker',
+                                    error_message = 'integrity check worker became stale',
+                                    updated_at = now(),
+                                    finished_at = now()
+                                WHERE status = 'running'
+                                  AND updated_at < now() - (%s * interval '1 second')
+                                """,
+                                (stale_after_seconds,),
+                            )
+                            count = int(result.rowcount)
+                finally:
+                    if acquired:
+                        connection.execute("SELECT pg_advisory_unlock(%s)", (lock_key,))
+        except MarketDataRepositoryError as exc:
+            raise IntegrityCheckStoreError("integrity check storage is unavailable") from exc
+        return count
+
+    def create_running(self, window: SyncWindow, target_count: int) -> IntegrityCheckRun:
+        """Atomically claim the single running-check slot."""
+
+        check_id = str(uuid4())
+        try:
+            with self._connection() as connection, connection.transaction():
+                row = connection.execute(
+                    """
+                    INSERT INTO market_integrity_check
+                        (id, status, window_start, window_end, target_count)
+                    VALUES (%s, 'running', %s, %s, %s)
+                    RETURNING id, status, window_start, window_end, target_count,
+                              checked_count, issue_count, error_type, error_message,
+                              created_at, finished_at
+                    """,
+                    (check_id, window.start, window.end, target_count),
+                ).fetchone()
+        except MarketDataRepositoryError as exc:
+            if isinstance(exc.__cause__, psycopg.errors.UniqueViolation):
+                raise IntegrityCheckInProgress("another integrity check is running") from exc
+            raise IntegrityCheckStoreError("integrity check storage is unavailable") from exc
+        if row is None:
+            raise IntegrityCheckStoreError("integrity check claim returned no row")
+        return _check_from_row(row)
+
+    def update_progress(self, check_id: str, checked_count: int, issue_count: int) -> None:
+        """Persist heartbeat and counters after each comparison group."""
+
+        try:
+            with self._connection() as connection, connection.transaction():
+                connection.execute(
+                    """
+                    UPDATE market_integrity_check
+                    SET checked_count = %s, issue_count = %s, updated_at = now()
+                    WHERE id = %s AND status = 'running'
+                    """,
+                    (checked_count, issue_count, check_id),
+                )
+        except MarketDataRepositoryError as exc:
+            raise IntegrityCheckStoreError("integrity check progress cannot be saved") from exc
+
+    def record_issues(self, issues: Iterable[IntegrityIssue]) -> None:
+        """Insert a bounded issue batch idempotently."""
+
+        records = tuple(issues)
+        if not records:
+            return
+        try:
+            with self._connection() as connection, connection.transaction():
+                connection.executemany(
+                    """
+                    INSERT INTO market_integrity_issue
+                        (check_id, issue_key, item_kind, item_key, issue_type, message)
+                    VALUES (%s, %s, %s, %s, %s, %s)
+                    ON CONFLICT (check_id, issue_key) DO UPDATE SET
+                        message = EXCLUDED.message
+                    """,
+                    [
+                        (
+                            issue.check_id,
+                            issue.issue_key,
+                            issue.item_kind,
+                            issue.item_key,
+                            issue.issue_type,
+                            _safe_message(issue.message),
+                        )
+                        for issue in records
+                    ],
+                )
+        except MarketDataRepositoryError as exc:
+            raise IntegrityCheckStoreError("integrity issues cannot be saved") from exc
+
+    def finish(
+        self,
+        check_id: str,
+        status: IntegrityStatus,
+        *,
+        issue_count: int,
+        error_type: str | None = None,
+        error_message: str | None = None,
+    ) -> None:
+        """Converge one running check to a terminal state."""
+
+        try:
+            with self._connection() as connection, connection.transaction():
+                connection.execute(
+                    """
+                    UPDATE market_integrity_check
+                    SET status = %s, issue_count = %s, error_type = %s,
+                        error_message = %s, updated_at = now(), finished_at = now()
+                    WHERE id = %s
+                    """,
+                    (
+                        status,
+                        issue_count,
+                        error_type,
+                        _safe_message(error_message),
+                        check_id,
+                    ),
+                )
+        except MarketDataRepositoryError as exc:
+            raise IntegrityCheckStoreError("integrity check result cannot be saved") from exc
+
+    def get(self, check_id: str, query: IntegrityCheckQuery) -> IntegrityCheckPage | None:
+        """Read one check and a stable issue page."""
+
+        return self._read_page("WHERE id = %s", (check_id,), query)
+
+    def get_latest(self, query: IntegrityCheckQuery) -> IntegrityCheckPage | None:
+        """Read the newest check by creation time."""
+
+        try:
+            with self._connection() as connection:
+                row = connection.execute(
+                    """
+                    SELECT id
+                    FROM market_integrity_check
+                    ORDER BY created_at DESC, id DESC
+                    LIMIT 1
+                    """
+                ).fetchone()
+        except MarketDataRepositoryError as exc:
+            raise IntegrityCheckStoreError("integrity check storage is unavailable") from exc
+        if row is None:
+            return None
+        return self.get(str(row[0]), query)
+
+    def _read_page(
+        self,
+        predicate: str,
+        parameters: tuple[object, ...],
+        query: IntegrityCheckQuery,
+    ) -> IntegrityCheckPage | None:
+        offset = (query.page - 1) * query.page_size
+        try:
+            with self._connection() as connection:
+                row = connection.execute(
+                    f"""
+                    SELECT id, status, window_start, window_end, target_count,
+                           checked_count, issue_count, error_type, error_message,
+                           created_at, finished_at
+                    FROM market_integrity_check
+                    {predicate}
+                    """,
+                    parameters,
+                ).fetchone()
+                if row is None:
+                    return None
+                total_row = connection.execute(
+                    "SELECT count(*) FROM market_integrity_issue WHERE check_id = %s",
+                    (row[0],),
+                ).fetchone()
+                issue_rows = connection.execute(
+                    """
+                    SELECT check_id, issue_key, item_kind, item_key, issue_type,
+                           message, created_at
+                    FROM market_integrity_issue
+                    WHERE check_id = %s
+                    ORDER BY issue_key
+                    LIMIT %s OFFSET %s
+                    """,
+                    (row[0], query.page_size, offset),
+                ).fetchall()
+        except MarketDataRepositoryError as exc:
+            raise IntegrityCheckStoreError("integrity check storage is unavailable") from exc
+        return IntegrityCheckPage(
+            run=_check_from_row(row),
+            page=query.page,
+            page_size=query.page_size,
+            issues_total=int(total_row[0]) if total_row is not None else 0,
+            issues=tuple(_issue_from_row(issue_row) for issue_row in issue_rows),
+        )
+
+    @contextmanager
+    def _connection(self) -> Generator[Any, None, None]:
+        """Borrow a pooled connection and translate driver errors safely."""
+
+        try:
+            self.repository.open()
+            with self.repository.connection() as connection:
+                yield connection
+        except psycopg.Error as exc:
+            raise MarketDataRepositoryError("market data database operation failed") from exc
+
+
+def _check_from_row(row: tuple[Any, ...]) -> IntegrityCheckRun:
+    """Translate one persistence row into the domain run model."""
+
+    window = None
+    if row[2] is not None and row[3] is not None:
+        window = SyncWindow(start=row[2], end=row[3])
+    status = cast(IntegrityStatus, str(row[1]))
+    return IntegrityCheckRun(
+        id=str(row[0]),
+        status=status,
+        window=window,
+        target_count=int(row[4]),
+        checked_count=int(row[5]),
+        issue_count=int(row[6]),
+        error_type=str(row[7]) if row[7] is not None else None,
+        error_message=str(row[8]) if row[8] is not None else None,
+        created_at=row[9],
+        finished_at=row[10],
+    )
+
+
+def _issue_from_row(row: tuple[Any, ...]) -> IntegrityIssue:
+    """Translate one persistence row into a domain issue."""
+
+    return IntegrityIssue(
+        check_id=str(row[0]),
+        issue_key=str(row[1]),
+        item_kind=str(row[2]),
+        item_key=str(row[3]),
+        issue_type=str(row[4]),
+        message=str(row[5]),
+        created_at=row[6],
+    )
+
+
+def _safe_message(message: str | None) -> str | None:
+    """Persist bounded, whitespace-normalized messages only."""
+
+    if message is None:
+        return None
+    return " ".join(message.split())[:500]
+
+
+# This name reads naturally at the application seam and keeps an intuitive
+# compatibility alias for callers that call every persistence adapter a repo.
+PostgresIntegrityCheckRepository = PostgresIntegrityCheckStore
+
+
+__all__ = [
+    "PostgresIntegrityCheckRepository",
+    "PostgresIntegrityCheckStore",
+    "PostgresIntegritySnapshotReader",
+]

zhixing-server/src/zhixing_server/modules/market_data/infrastructure/postgres.py

@@ -2,14 +2,15 @@
 
 from __future__ import annotations
 
-from collections.abc import Generator, Iterable
+import threading
+from collections.abc import Generator, Iterable, Iterator
 from contextlib import contextmanager
 from datetime import date
 from decimal import Decimal
 from typing import Any
 from uuid import uuid4
 
-import psycopg
+from psycopg_pool import ConnectionPool
 
 from ..domain.models import Bar, DailyBasic, Stock, SyncWindow
 from ..domain.overview import (
@@ -25,12 +26,69 @@ from ..domain.ports import MarketDataRepositoryError, WriteResult
 class PostgresMarketDataRepository:
     """Persist market data without an ORM identity map.
 
-    Each public write opens a short transaction.  The caller publishes the
+    Each public write borrows an independent connection from a bounded pool
-    matching CSV only after this method returns successfully.
+    for a short transaction.  The caller publishes the matching CSV only
+    after this method returns successfully.
     """
 
-    def __init__(self, database_url: str) -> None:
+    def __init__(
+        self,
+        database_url: str,
+        *,
+        max_connections: int = 10,
+        pool: ConnectionPool[Any] | None = None,
+    ) -> None:
+        if max_connections < 1:
+            raise ValueError("max_connections must be at least 1")
         self.database_url = database_url
+        self.max_connections = max_connections
+        self.pool = (
+            pool
+            if pool is not None
+            else ConnectionPool(
+                conninfo=database_url,
+                min_size=1,
+                max_size=max_connections,
+                open=False,
+            )
+        )
+        self._owns_pool = pool is None
+        self._pool_open = False
+        self._pool_state_lock = threading.Lock()
+
+    def open(self) -> None:
+        """Open the pool and wait until its minimum connections are ready."""
+
+        with self._pool_state_lock:
+            if self._pool_open:
+                return
+            if bool(getattr(self.pool, "_opened", False)):
+                self._pool_open = True
+                return
+            self.pool.open(wait=True)
+            self._pool_open = True
+
+    def close(self) -> None:
+        """Close this repository's pool after all borrowed connections return."""
+
+        with self._pool_state_lock:
+            if self._owns_pool and (self._pool_open or bool(getattr(self.pool, "_opened", False))):
+                self.pool.close()
+                self._pool_open = False
+
+    def __enter__(self) -> PostgresMarketDataRepository:
+        self.open()
+        return self
+
+    @contextmanager
+    def connection(self) -> Generator[Any, None, None]:
+        """Expose a safe pooled connection seam to sibling adapters."""
+
+        with self._connection() as connection:
+            yield connection
+
+    def __exit__(self, exc_type: object, exc_value: object, traceback: object) -> None:
+        self.close()
 
     def read_overview(self) -> MarketDataOverview:
         """Aggregate the active stock pool and latest synchronization facts.
@@ -356,6 +414,171 @@ class PostgresMarketDataRepository:
     def has_daily_basic(self, ts_code: str, trade_date: date) -> bool:
         return self._exists("market_daily_basic", ts_code, trade_date)
 
+    def count_valid_stocks(self, trade_date: date) -> int:
+        """Count complete active-stock facts with one set-based query."""
+
+        with self._connection() as connection:
+            row = connection.execute(
+                """
+                SELECT count(*)
+                FROM market_stock AS stock
+                WHERE stock.is_active = true
+                  AND EXISTS (
+                      SELECT 1
+                      FROM market_daily_bar AS bar
+                      WHERE bar.ts_code = stock.ts_code
+                        AND bar.trade_date = %s
+                  )
+                  AND EXISTS (
+                      SELECT 1
+                      FROM market_daily_basic AS basic
+                      WHERE basic.ts_code = stock.ts_code
+                        AND basic.trade_date = %s
+                  )
+                """,
+                (trade_date, trade_date),
+            ).fetchone()
+        return int(row[0]) if row is not None else 0
+
+    def latest_successful_window(self) -> SyncWindow | None:
+        """Return the newest completed synchronization window.
+
+        Integrity checks compare persisted facts to a completed window only;
+        an in-progress or failed batch must never redefine the comparison
+        boundary.
+        """
+
+        with self._connection() as connection:
+            row = connection.execute(
+                """
+                SELECT window_start, target_trade_date
+                FROM market_sync_batch
+                WHERE status IN ('success', 'partial_success')
+                ORDER BY target_trade_date DESC, finished_at DESC NULLS LAST,
+                         created_at DESC, id DESC
+                LIMIT 1
+                """
+            ).fetchone()
+        if row is None:
+            return None
+        return SyncWindow(start=row[0], end=row[1])
+
+    def active_stocks(self) -> tuple[Stock, ...]:
+        """Read the current active stock master in stable code order."""
+
+        with self._connection() as connection:
+            rows = connection.execute(
+                """
+                SELECT ts_code, name, market, exchange, list_status, list_date
+                FROM market_stock
+                WHERE is_active = true
+                ORDER BY ts_code
+                """
+            ).fetchall()
+        return tuple(
+            Stock(
+                ts_code=str(row[0]),
+                name=str(row[1]),
+                market=str(row[2]),
+                exchange=str(row[3]),
+                list_status=str(row[4]),
+                list_date=row[5],
+            )
+            for row in rows
+        )
+
+    def list_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        """List bar groups in a window without materializing their rows."""
+
+        with self._connection() as connection:
+            rows = connection.execute(
+                """
+                SELECT DISTINCT ts_code
+                FROM market_daily_bar
+                WHERE trade_date BETWEEN %s AND %s
+                ORDER BY ts_code
+                """,
+                (window.start, window.end),
+            ).fetchall()
+        return tuple(str(row[0]) for row in rows)
+
+    def list_invalid_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        """List qfq groups whose persisted adjustment source is not qfq."""
+
+        with self._connection() as connection:
+            rows = connection.execute(
+                """
+                SELECT DISTINCT ts_code
+                FROM market_daily_bar
+                WHERE trade_date BETWEEN %s AND %s
+                  AND source_adj <> 'qfq'
+                ORDER BY ts_code
+                """,
+                (window.start, window.end),
+            ).fetchall()
+        return tuple(str(row[0]) for row in rows)
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> tuple[date, ...]:
+        """List daily-basic groups in a window without loading their rows."""
+
+        with self._connection() as connection:
+            rows = connection.execute(
+                """
+                SELECT DISTINCT trade_date
+                FROM market_daily_basic
+                WHERE trade_date BETWEEN %s AND %s
+                ORDER BY trade_date
+                """,
+                (window.start, window.end),
+            ).fetchall()
+        return tuple(row[0] for row in rows)
+
+    def iter_bars(self, window: SyncWindow) -> Iterator[Bar]:
+        """Stream qfq bars ordered by stock and trade date.
+
+        A named PostgreSQL cursor keeps the roughly seven-million-row fact
+        table out of process memory.  The connection and transaction remain
+        open only for the lifetime of this iterator.
+        """
+
+        query = """
+            SELECT ts_code, trade_date, open, high, low, close, pre_close,
+                   change, pct_chg, vol, amount
+            FROM market_daily_bar
+            WHERE trade_date BETWEEN %s AND %s
+            ORDER BY ts_code, trade_date
+        """
+        with (
+            self._connection() as connection,
+            connection.transaction(),
+            connection.cursor(name=f"integrity-bars-{uuid4().hex}") as cursor,
+        ):
+            cursor.execute(query, (window.start, window.end))
+            while rows := cursor.fetchmany(2_000):
+                for row in rows:
+                    yield _bar_from_database_row(row)
+
+    def iter_daily_basic(self, window: SyncWindow) -> Iterator[DailyBasic]:
+        """Stream daily-basic rows ordered by trade date and stock code."""
+
+        query = """
+            SELECT ts_code, trade_date, close, turnover_rate, turnover_rate_f,
+                   volume_ratio, pe, pe_ttm, pb, ps, ps_ttm, dv_ratio, dv_ttm,
+                   total_share, float_share, free_share, total_mv, circ_mv
+            FROM market_daily_basic
+            WHERE trade_date BETWEEN %s AND %s
+            ORDER BY trade_date, ts_code
+        """
+        with (
+            self._connection() as connection,
+            connection.transaction(),
+            connection.cursor(name=f"integrity-basic-{uuid4().hex}") as cursor,
+        ):
+            cursor.execute(query, (window.start, window.end))
+            while rows := cursor.fetchmany(2_000):
+                for row in rows:
+                    yield _daily_basic_from_database_row(row)
+
     def create_batch(
         self,
         target_trade_date: date,
@@ -441,6 +664,50 @@ class PostgresMarketDataRepository:
                 ),
             )
 
+    def record_items(self, batch_id: str, outcomes: Iterable[object]) -> None:
+        """Batch-upsert synchronization audit outcomes in one transaction."""
+
+        records = tuple(outcomes)
+        if not records:
+            return
+        parameters: list[tuple[object, ...]] = []
+        for outcome in records:
+            result = getattr(outcome, "result", WriteResult())
+            failure = getattr(outcome, "failure", None)
+            item_kind_attribute = "item_kind"
+            item_key_attribute = "item_key"
+            status_attribute = "status"
+            parameters.append(
+                (
+                    batch_id,
+                    str(getattr(outcome, item_kind_attribute)),
+                    str(getattr(outcome, item_key_attribute)),
+                    str(getattr(outcome, status_attribute)),
+                    int(getattr(result, "inserted", 0)),
+                    int(getattr(result, "updated", 0)),
+                    int(getattr(result, "unchanged", 0)),
+                    getattr(outcome, "fingerprint", None),
+                    getattr(failure, "error_type", None),
+                    self._safe_error(getattr(failure, "message", None)),
+                )
+            )
+        query = """
+            INSERT INTO market_sync_item
+                (batch_id, item_kind, item_key, status, inserted_count,
+                 updated_count, unchanged_count, fingerprint, error_type, error_message)
+            VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
+            ON CONFLICT (batch_id, item_kind, item_key) DO UPDATE SET
+                status = EXCLUDED.status,
+                inserted_count = EXCLUDED.inserted_count,
+                updated_count = EXCLUDED.updated_count,
+                unchanged_count = EXCLUDED.unchanged_count,
+                fingerprint = EXCLUDED.fingerprint,
+                error_type = EXCLUDED.error_type,
+                error_message = EXCLUDED.error_message
+        """
+        with self._connection() as connection, connection.transaction():
+            connection.cursor().executemany(query, parameters)
+
     def failed_items(self, parent_batch_id: str) -> tuple[tuple[str, str], ...]:
         with self._connection() as connection:
             rows = connection.execute(
@@ -490,12 +757,13 @@ class PostgresMarketDataRepository:
 
     @contextmanager
     def _connection(self) -> Generator[Any, None, None]:
-        """Translate driver failures into a safe application-level error."""
+        """Borrow one thread-safe pool connection and hide driver failures."""
 
         try:
-            with psycopg.connect(self.database_url) as connection:
+            self.open()
+            with self.pool.connection() as connection:
                 yield connection
-        except psycopg.Error as exc:
+        except Exception as exc:  # noqa: BLE001 - repository boundary redacts driver/pool errors
             raise MarketDataRepositoryError("market data database operation failed") from exc
 
     @staticmethod
@@ -610,11 +878,11 @@ class PostgresMarketDataRepository:
                 market_daily_bar.open, market_daily_bar.high, market_daily_bar.low,
                 market_daily_bar.close, market_daily_bar.pre_close,
                 market_daily_bar.change, market_daily_bar.pct_chg,
-                market_daily_bar.vol, market_daily_bar.amount
+                market_daily_bar.vol, market_daily_bar.amount, market_daily_bar.source_adj
             ) IS DISTINCT FROM (
                 EXCLUDED.open, EXCLUDED.high, EXCLUDED.low, EXCLUDED.close,
                 EXCLUDED.pre_close, EXCLUDED.change, EXCLUDED.pct_chg,
-                EXCLUDED.vol, EXCLUDED.amount
+                EXCLUDED.vol, EXCLUDED.amount, 'qfq'
             )
             RETURNING (xmax = 0) AS inserted
             """
@@ -673,3 +941,77 @@ class PostgresMarketDataRepository:
         if message is None:
             return None
         return " ".join(message.split())[:500]
+
+
+def _database_decimal(value: object) -> Decimal | None:
+    """Normalize a PostgreSQL numeric value for the domain model."""
+
+    if value is None:
+        return None
+    result = Decimal(str(value))
+    if not result.is_finite():
+        raise ValueError("database numeric value must be finite")
+    return result
+
+
+def _bar_from_database_row(row: tuple[Any, ...]) -> Bar:
+    """Translate one ordered PostgreSQL bar row into a domain value."""
+
+    return Bar(
+        ts_code=str(row[0]),
+        trade_date=row[1],
+        open=_database_decimal(row[2]),
+        high=_database_decimal(row[3]),
+        low=_database_decimal(row[4]),
+        close=_database_decimal(row[5]),
+        pre_close=_database_decimal(row[6]),
+        change=_database_decimal(row[7]),
+        pct_chg=_database_decimal(row[8]),
+        vol=_database_decimal(row[9]),
+        amount=_database_decimal(row[10]),
+    )
+
+
+def _daily_basic_from_database_row(row: tuple[Any, ...]) -> DailyBasic:
+    """Translate one ordered PostgreSQL daily-basic row into a domain value."""
+
+    fields = (
+        "close",
+        "turnover_rate",
+        "turnover_rate_f",
+        "volume_ratio",
+        "pe",
+        "pe_ttm",
+        "pb",
+        "ps",
+        "ps_ttm",
+        "dv_ratio",
+        "dv_ttm",
+        "total_share",
+        "float_share",
+        "free_share",
+        "total_mv",
+        "circ_mv",
+    )
+    values = {field: _database_decimal(row[index + 2]) for index, field in enumerate(fields)}
+    return DailyBasic(
+        ts_code=str(row[0]),
+        trade_date=row[1],
+        **values,
+    )
+
+
+# Re-export the read-only integrity adapters from the established PostgreSQL
+# module so existing infrastructure import paths remain discoverable.
+from .integrity import (  # noqa: E402
+    PostgresIntegrityCheckRepository,
+    PostgresIntegrityCheckStore,
+    PostgresIntegritySnapshotReader,
+)
+
+__all__ = [
+    "PostgresIntegrityCheckRepository",
+    "PostgresIntegrityCheckStore",
+    "PostgresIntegritySnapshotReader",
+    "PostgresMarketDataRepository",
+]

zhixing-server/src/zhixing_server/modules/market_data/infrastructure/schema.py

@@ -16,6 +16,7 @@ from sqlalchemy import (
     Text,
     UniqueConstraint,
     func,
+    text,
 )
 from sqlalchemy.dialects.postgresql import JSONB
 
@@ -173,6 +174,41 @@ selection_signal = Table(
     PrimaryKeyConstraint("run_id", "ts_code", "category"),
 )
 
+market_integrity_check = Table(
+    "market_integrity_check",
+    metadata,
+    Column("id", String(36), primary_key=True),
+    Column("status", String(24), nullable=False),
+    Column("window_start", Date),
+    Column("window_end", Date),
+    Column("target_count", Integer, nullable=False, server_default="0"),
+    Column("checked_count", Integer, nullable=False, server_default="0"),
+    Column("issue_count", Integer, nullable=False, server_default="0"),
+    Column("error_type", String(64)),
+    Column("error_message", Text),
+    Column("created_at", DateTime(timezone=True), nullable=False, server_default=func.now()),
+    Column("updated_at", DateTime(timezone=True), nullable=False, server_default=func.now()),
+    Column("finished_at", DateTime(timezone=True)),
+)
+
+market_integrity_issue = Table(
+    "market_integrity_issue",
+    metadata,
+    Column(
+        "check_id",
+        String(36),
+        ForeignKey("market_integrity_check.id", ondelete="CASCADE"),
+        nullable=False,
+    ),
+    Column("issue_key", String(64), nullable=False),
+    Column("item_kind", String(24), nullable=False),
+    Column("item_key", String(128), nullable=False),
+    Column("issue_type", String(64), nullable=False),
+    Column("message", Text, nullable=False),
+    Column("created_at", DateTime(timezone=True), nullable=False, server_default=func.now()),
+    PrimaryKeyConstraint("check_id", "issue_key"),
+)
+
 # Keep the declarative metadata aligned with the indexes created by the
 # Alembic revisions.  Alembic uses this object for both offline inspection
 # and future autogeneration, so omitting these indexes would make the schema
@@ -193,3 +229,15 @@ Index(
     selection_signal.c.target_trade_date,
     selection_signal.c.ts_code,
 )
+Index(
+    "ix_market_integrity_check_status_created_at",
+    market_integrity_check.c.status,
+    market_integrity_check.c.created_at,
+)
+Index(
+    "uq_market_integrity_check_running",
+    market_integrity_check.c.status,
+    unique=True,
+    postgresql_where=text("status = 'running'"),
+)
+Index("ix_market_integrity_issue_check_id", market_integrity_issue.c.check_id)

zhixing-server/src/zhixing_server/modules/market_data/infrastructure/tushare.py

@@ -1,11 +1,12 @@
-"""Tushare source adapter and current-universe filtering."""
+"""Tushare source adapter, request coordination, and current-universe filtering."""
 
 from __future__ import annotations
 
 import logging
 import random
+import threading
 import time
-from collections.abc import Callable, Iterable, Mapping
+from collections.abc import Callable, Iterable, Mapping, Sequence
 from datetime import date
 from typing import cast
 
@@ -14,18 +15,226 @@ from ..domain.rules import filter_current_hs_a_stocks
 
 logger = logging.getLogger(__name__)
 
+DEFAULT_RATE_LIMIT_COOLDOWNS = (60.0, 120.0, 180.0)
+_RATE_LIMIT_MESSAGES = (
+    "访问频繁",
+    "请稍后",
+    "超过频率",
+    "频率限制",
+    "too many requests",
+    "rate limit",
+    "rate_limit",
+    "http 429",
+    "status code: 429",
+    "429",
+    "http 403",
+    "status code: 403",
+    "403",
+)
+
 
 class TushareSourceError(RuntimeError):
     """A vendor request failed after the configured retry budget."""
 
 
-class TushareAdapter:
+class RequestCoordinator:
-    """Translate Tushare SDK responses into domain records.
+    """Coordinate retry and shared rate-limit cooling for one token client.
 
-    The SDK is kept behind this adapter so ordinary domain/application tests
+    Normal requests are deliberately not serialized.  Only a provider rate
-    can inject a tiny fake client and never need a network token.
+    limit creates a shared cooldown, so independent worker calls can proceed
+    concurrently during ordinary traffic.  ``clock`` and ``wait_fn`` are
+    injectable to make long cooldown behavior deterministic in unit tests.
     """
 
+    def __init__(
+        self,
+        *,
+        max_retries: int = 3,
+        backoff_seconds: float = 1.0,
+        cooldown_seconds: Sequence[float] = DEFAULT_RATE_LIMIT_COOLDOWNS,
+        random_fn: Callable[[], float] = random.random,
+        clock: Callable[[], float] = time.monotonic,
+        wait_fn: Callable[[float], None] = time.sleep,
+        sleep_fn: Callable[[float], None] | None = None,
+    ) -> None:
+        cooldowns = tuple(float(value) for value in cooldown_seconds)
+        if not cooldowns or any(value < 0 for value in cooldowns):
+            raise ValueError("cooldown_seconds must contain non-negative values")
+        self.max_retries = max(0, max_retries)
+        self.backoff_seconds = max(0.0, backoff_seconds)
+        self.cooldown_seconds = cooldowns
+        self.random_fn = random_fn
+        self.clock = clock
+        self.wait_fn = wait_fn
+        self.sleep_fn = sleep_fn or wait_fn
+        self._condition = threading.Condition()
+        self._cooldown_until = 0.0
+        self._rate_limit_count = 0
+
+    @property
+    def cooldown_until(self) -> float:
+        """Return the current monotonic cooldown deadline."""
+
+        with self._condition:
+            return self._cooldown_until
+
+    def call(self, method_name: str, request: Callable[[], object]) -> object:
+        """Execute one provider request with bounded, shared retry behavior."""
+
+        last_error: BaseException | None = None
+        for attempt in range(self.max_retries + 1):
+            self._wait_for_cooldown(method_name)
+            try:
+                result = request()
+            except Exception as exc:
+                last_error = exc
+                if self.is_rate_limited(exc):
+                    cooldown = self._set_rate_limit_cooldown()
+                    logger.warning(
+                        "tushare_rate_limit method=%s attempt=%d max_attempts=%d "
+                        "cooldown_seconds=%.1f",
+                        method_name,
+                        attempt + 1,
+                        self.max_retries + 1,
+                        cooldown,
+                    )
+                    if attempt < self.max_retries:
+                        continue
+                    break
+                if not self._is_retryable(exc):
+                    raise
+                if attempt == self.max_retries:
+                    break
+                delay = self.backoff_seconds * (2**attempt) * (0.5 + self.random_fn())
+                logger.warning(
+                    "tushare_request_retry method=%s attempt=%d max_attempts=%d "
+                    "backoff_seconds=%.1f",
+                    method_name,
+                    attempt + 1,
+                    self.max_retries + 1,
+                    delay,
+                )
+                self.sleep_fn(delay)
+            else:
+                self._clear_rate_limit_after_success()
+                return result
+        logger.error(
+            "tushare_request_failed method=%s attempts=%d",
+            method_name,
+            self.max_retries + 1,
+        )
+        raise TushareSourceError(f"Tushare request failed: {method_name}") from last_error
+
+    def request(self, method_name: str, operation: Callable[[], object]) -> object:
+        """Alias for ``call`` for adapters that model requests as a port."""
+
+        return self.call(method_name, operation)
+
+    def _wait_for_cooldown(self, method_name: str) -> None:
+        while True:
+            with self._condition:
+                delay = self._cooldown_until - self.clock()
+            if delay <= 0:
+                return
+            logger.info(
+                "tushare_rate_limit_wait method=%s wait_seconds=%.1f",
+                method_name,
+                delay,
+            )
+            # A single injected wait hook makes fake-clock tests independent
+            # from wall time.  After waiting, re-check because another worker
+            # may have extended the shared deadline.
+            self.wait_fn(delay)
+
+    def _set_rate_limit_cooldown(self) -> float:
+        with self._condition:
+            self._rate_limit_count += 1
+            index = min(self._rate_limit_count - 1, len(self.cooldown_seconds) - 1)
+            duration = self.cooldown_seconds[index]
+            self._cooldown_until = max(self._cooldown_until, self.clock() + duration)
+            self._condition.notify_all()
+            return duration
+
+    def _clear_rate_limit_after_success(self) -> None:
+        with self._condition:
+            # A request that was already in flight when another worker hit a
+            # limit may succeed during the shared cooldown.  Do not erase the
+            # escalation history until the cooldown has actually elapsed.
+            if self.clock() >= self._cooldown_until:
+                self._rate_limit_count = 0
+
+    @staticmethod
+    def is_rate_limited(error: BaseException) -> bool:
+        """Classify stable provider rate-limit signals without logging details."""
+
+        for attribute in ("status_code", "status", "code"):
+            value = getattr(error, attribute, None)
+            if str(value).strip() in {"403", "429"}:
+                return True
+        message = str(error).casefold()
+        return any(marker.casefold() in message for marker in _RATE_LIMIT_MESSAGES)
+
+    @staticmethod
+    def _is_retryable(error: BaseException) -> bool:
+        return isinstance(error, (OSError, RuntimeError, TimeoutError))
+
+
+# The longer name is useful to callers that want to make the infrastructure
+# boundary explicit, while the short name remains convenient in unit tests.
+TushareRequestCoordinator = RequestCoordinator
+
+
+class CoordinatedTushareClient:
+    """Proxy that routes qfq's real ``daily`` and ``adj_factor`` calls."""
+
+    def __init__(self, client: object, coordinator: RequestCoordinator) -> None:
+        self._client = client
+        self._coordinator = coordinator
+
+    def __getattr__(self, name: str) -> object:
+        method = getattr(self._client, name)
+        if name not in {"daily", "adj_factor"} or not callable(method):
+            return method
+
+        def coordinated(*args: object, **kwargs: object) -> object:
+            return self._coordinator.call(
+                name,
+                lambda: method(*args, **kwargs),
+            )
+
+        return coordinated
+
+
+def _bind_coordinated_methods(client: object, coordinator: RequestCoordinator) -> object:
+    """Bind wrappers on a mutable SDK client while preserving ``api is client``.
+
+    Tushare's ``pro_bar`` accepts the token client through its ``api``
+    parameter.  Binding the two methods in place keeps that identity contract
+    (and avoids a proxy-visible behavior change); objects that do not allow
+    attributes fall back to the proxy.
+    """
+
+    def build_wrapper(name: str, method: Callable[..., object]) -> Callable[..., object]:
+        def coordinated(*args: object, **kwargs: object) -> object:
+            return coordinator.call(name, lambda: method(*args, **kwargs))
+
+        return coordinated
+
+    for name in ("daily", "adj_factor"):
+        method = getattr(client, name, None)
+        if not callable(method):
+            continue
+
+        try:
+            setattr(client, name, build_wrapper(name, method))
+        except (AttributeError, TypeError):
+            return CoordinatedTushareClient(client, coordinator)
+    return client
+
+
+class TushareAdapter:
+    """Translate Tushare SDK responses into domain records."""
+
     def __init__(
         self,
         client: object,
@@ -36,14 +245,32 @@ class TushareAdapter:
         request_interval_seconds: float = 0.2,
         random_fn: Callable[[], float] = random.random,
         sleep_fn: Callable[[float], None] = time.sleep,
+        request_coordinator: RequestCoordinator | None = None,
+        cooldown_seconds: Sequence[float] = DEFAULT_RATE_LIMIT_COOLDOWNS,
+        coordinated_client: object | None = None,
+        pro_bar_coordinated: bool = False,
     ) -> None:
         self.client = client
-        self.pro_bar = pro_bar
         self.max_retries = max(0, max_retries)
         self.backoff_seconds = max(0.0, backoff_seconds)
         self.request_interval_seconds = max(0.0, request_interval_seconds)
         self.random_fn = random_fn
         self.sleep_fn = sleep_fn
+        self.request_coordinator = request_coordinator or RequestCoordinator(
+            max_retries=self.max_retries,
+            backoff_seconds=self.backoff_seconds,
+            cooldown_seconds=cooldown_seconds,
+            random_fn=random_fn,
+            wait_fn=sleep_fn,
+            sleep_fn=sleep_fn,
+        )
+        self.coordinated_client = (
+            coordinated_client
+            if coordinated_client is not None
+            else _bind_coordinated_methods(client, self.request_coordinator)
+        )
+        self.pro_bar = pro_bar
+        self.pro_bar_coordinated = pro_bar_coordinated
 
     @classmethod
     def from_token(
@@ -53,6 +280,7 @@ class TushareAdapter:
         max_retries: int = 3,
         backoff_seconds: float = 1.0,
         request_interval_seconds: float = 0.2,
+        cooldown_seconds: Sequence[float] = DEFAULT_RATE_LIMIT_COOLDOWNS,
     ) -> TushareAdapter:
         """Create a production adapter from a token without exposing it."""
 
@@ -61,13 +289,22 @@ class TushareAdapter:
         import tushare as ts  # pyright: ignore[reportMissingTypeStubs]
 
         client = cast(object, ts.pro_api(token))
+        coordinator = RequestCoordinator(
+            max_retries=max_retries,
+            backoff_seconds=backoff_seconds,
+            cooldown_seconds=cooldown_seconds,
+        )
+        coordinated_client = _bind_coordinated_methods(client, coordinator)
         pro_bar = cast(
             Callable[..., object],
             ts.pro_bar,  # pyright: ignore[reportUnknownMemberType]
         )
 
         def pro_bar_with_client(**kwargs: object) -> object:
-            return pro_bar(api=client, **kwargs)
+            # qfq's SDK helper otherwise performs hidden retries outside the
+            # shared coordinator and can amplify a provider rate limit.
+            kwargs["retry_count"] = 1
+            return pro_bar(api=coordinated_client, **kwargs)
 
         return cls(
             client,
@@ -75,6 +312,9 @@ class TushareAdapter:
             max_retries=max_retries,
             backoff_seconds=backoff_seconds,
             request_interval_seconds=request_interval_seconds,
+            request_coordinator=coordinator,
+            coordinated_client=coordinated_client,
+            pro_bar_coordinated=True,
         )
 
     def fetch_stocks(self) -> tuple[Stock, ...]:
@@ -137,43 +377,29 @@ class TushareAdapter:
         return tuple(sorted(metrics, key=lambda row: row.ts_code))
 
     def _records(self, method_name: str, **kwargs: object) -> tuple[Mapping[str, object], ...]:
-        """Call an SDK method with bounded retry and normalize its tabular output."""
+        """Call the SDK through the coordinator and normalize tabular output."""
 
         def request() -> object:
             if method_name == "pro_bar":
                 if self.pro_bar is not None:
                     return self.pro_bar(**kwargs)
-                method = getattr(self.client, method_name, None)
+                method = getattr(self.coordinated_client, method_name, None)
             else:
-                method = getattr(self.client, method_name, None)
+                method = getattr(self.coordinated_client, method_name, None)
             if not callable(method):
                 raise TypeError(f"Tushare client has no callable {method_name}")
             return method(**kwargs)
 
-        last_error: BaseException | None = None
+        # ``pro_bar`` itself is a qfq composition helper; its nested daily and
-        for attempt in range(self.max_retries + 1):
+        # adj_factor methods are bound to the coordinator.  Wrapping the helper
-            try:
+        # as a second retry layer would hide the useful error classification.
-                result = request()
+        result = (
-                self.sleep_fn(self.request_interval_seconds)
+            request()
-                return self._as_records(result)
+            if method_name == "pro_bar" and self.pro_bar_coordinated
-            except (OSError, RuntimeError, TimeoutError) as exc:
+            else self.request_coordinator.call(method_name, request)
-                last_error = exc
-                if attempt == self.max_retries:
-                    break
-                delay = self.backoff_seconds * (2**attempt) * (0.5 + self.random_fn())
-                logger.warning(
-                    "tushare_request_retry method=%s attempt=%d max_attempts=%d",
-                    method_name,
-                    attempt + 1,
-                    self.max_retries + 1,
-                )
-                self.sleep_fn(delay)
-        logger.error(
-            "tushare_request_failed method=%s attempts=%d",
-            method_name,
-            self.max_retries + 1,
         )
-        raise TushareSourceError(f"Tushare request failed: {method_name}") from last_error
+        self.sleep_fn(self.request_interval_seconds)
+        return self._as_records(result)
 
     @staticmethod
     def _as_records(result: object) -> tuple[Mapping[str, object], ...]:

zhixing-server/src/zhixing_server/modules/market_data/presentation/cli.py

@@ -70,14 +70,24 @@ def main(argv: Sequence[str] | None = None) -> int:
         backoff_seconds=settings.market_data_retry_backoff_seconds,
         request_interval_seconds=settings.market_data_request_interval_seconds,
     )
-    use_case = SyncMarketData(
+    repository = PostgresMarketDataRepository(
-        source,
+        settings.database_url,
-        CsvSnapshotStore(settings.market_data_csv_root),
+        # Keep one control/advisory connection and one main-thread connection
-        PostgresMarketDataRepository(settings.database_url),
+        # available in addition to the worker connections.
-        coverage_threshold=settings.market_data_coverage_threshold,
+        max_connections=settings.market_data_max_workers + 2,
-        lock_key=settings.market_data_advisory_lock_key,
     )
-    summary = use_case.execute(command)
+    try:
+        use_case = SyncMarketData(
+            source,
+            CsvSnapshotStore(settings.market_data_csv_root),
+            repository,
+            coverage_threshold=settings.market_data_coverage_threshold,
+            lock_key=settings.market_data_advisory_lock_key,
+            max_workers=settings.market_data_max_workers,
+        )
+        summary = use_case.execute(command)
+    finally:
+        repository.close()
     print(json.dumps(summary.as_dict(), ensure_ascii=False, sort_keys=True))
     return summary.exit_code
 

zhixing-server/src/zhixing_server/modules/market_data/presentation/home.py

@@ -1,5 +1,7 @@
 """HTTP presentation for the Home market-data overview."""
 
+import atexit
+import threading
 from datetime import date, datetime
 from typing import Annotated, Literal
 from zoneinfo import ZoneInfo
@@ -24,6 +26,8 @@ from zhixing_server.modules.market_data.infrastructure.postgres import (
 
 home_router = APIRouter()
 _SHANGHAI = ZoneInfo("Asia/Shanghai")
+_REPOSITORY_CACHE_LOCK = threading.Lock()
+_REPOSITORY_CACHE: dict[tuple[str, int], PostgresMarketDataRepository] = {}
 
 OverviewStatusValue = Literal["updating", "success", "partial_success", "failed", "no_data"]
 UpdateStatusValue = Literal["updating", "success", "partial_success", "failed"]
@@ -138,9 +142,37 @@ def _to_shanghai(value: datetime | None) -> datetime | None:
 def get_market_data_overview_reader(
     settings: Annotated[Settings, Depends(get_settings)],
 ) -> MarketDataOverviewReader:
-    """Build the PostgreSQL read adapter for one request."""
+    """Return the process-cached PostgreSQL read adapter for this database."""
 
-    return PostgresMarketDataRepository(settings.database_url)
+    return get_market_data_repository(settings)
+
+
+def get_market_data_repository(settings: Settings) -> PostgresMarketDataRepository:
+    """Return the shared process-cached PostgreSQL pool for market data."""
+
+    key = (settings.database_url, settings.market_data_max_workers + 2)
+    with _REPOSITORY_CACHE_LOCK:
+        repository = _REPOSITORY_CACHE.get(key)
+        if repository is None:
+            repository = PostgresMarketDataRepository(
+                settings.database_url,
+                max_connections=key[1],
+            )
+            _REPOSITORY_CACHE[key] = repository
+    return repository
+
+
+def _close_cached_repositories() -> None:
+    """Release read pools when the HTTP process exits."""
+
+    with _REPOSITORY_CACHE_LOCK:
+        repositories = tuple(_REPOSITORY_CACHE.values())
+        _REPOSITORY_CACHE.clear()
+    for repository in repositories:
+        repository.close()
+
+
+atexit.register(_close_cached_repositories)
 
 
 @home_router.get("/overview", response_model=HomeOverviewResponse)

zhixing-server/tests/integration/test_market_data_migration.py

@@ -33,6 +33,8 @@ def test_postgres_migration_creates_market_data_contract(
             "market_daily_basic",
             "market_sync_batch",
             "market_sync_item",
+            "market_integrity_check",
+            "market_integrity_issue",
             "selection_run",
             "selection_run_item",
             "selection_signal",

zhixing-server/tests/integration/test_market_data_repository_pool.py

@@ -0,0 +1,141 @@
+from __future__ import annotations
+
+import os
+from concurrent.futures import ThreadPoolExecutor
+from contextlib import contextmanager
+from datetime import date
+from decimal import Decimal
+from pathlib import Path
+from typing import Any
+
+import psycopg
+import pytest
+from alembic import command
+from alembic.config import Config
+
+from zhixing_server.modules.market_data.application.sync import SyncFailure, SyncItemOutcome
+from zhixing_server.modules.market_data.domain.models import Bar, DailyBasic, SyncWindow
+from zhixing_server.modules.market_data.domain.ports import MarketDataRepositoryError, WriteResult
+from zhixing_server.modules.market_data.infrastructure.postgres import (
+    PostgresMarketDataRepository,
+)
+
+TEST_CODES = ("991901.SZ", "991902.SZ")
+TARGET = date(2024, 1, 2)
+WINDOW = SyncWindow(start=TARGET, end=TARGET)
+
+
+@contextmanager
+def _database(database_url: str) -> Any:
+    with psycopg.connect(database_url) as connection, connection.transaction():
+        yield connection
+
+
+def _cleanup(database_url: str) -> None:
+    with _database(database_url) as connection:
+        connection.execute(
+            "DELETE FROM market_sync_item WHERE batch_id IN "
+            "(SELECT id FROM market_sync_batch WHERE id LIKE '9919%')"
+        )
+        connection.execute("DELETE FROM market_sync_batch WHERE id LIKE '9919%'")
+        connection.execute(
+            "DELETE FROM market_daily_basic WHERE ts_code = ANY(%s)",
+            (list(TEST_CODES),),
+        )
+        connection.execute(
+            "DELETE FROM market_daily_bar WHERE ts_code = ANY(%s)",
+            (list(TEST_CODES),),
+        )
+        connection.execute(
+            "DELETE FROM market_stock WHERE ts_code = ANY(%s)",
+            (list(TEST_CODES),),
+        )
+
+
+def _prepare_database(database_url: str) -> None:
+    server_root = Path(__file__).parents[2]
+    config = Config(str(server_root / "alembic.ini"))
+    config.set_main_option(
+        "sqlalchemy.url",
+        database_url.replace("%", "%%").replace("postgresql://", "postgresql+psycopg://"),
+    )
+    command.upgrade(config, "head")
+    _cleanup(database_url)
+    with _database(database_url) as connection:
+        connection.executemany(
+            """
+            INSERT INTO market_stock
+                (ts_code, name, market, exchange, list_status, is_active)
+            VALUES (%s, %s, '主板', 'SZSE', 'L', true)
+            """,
+            [(code, f"测试{code}") for code in TEST_CODES],
+        )
+
+
+@pytest.mark.integration
+def test_pool_upsert_rollback_batch_audit_and_set_coverage() -> None:
+    database_url = os.getenv("ZHIXING_TEST_DATABASE_URL")
+    if not database_url:
+        pytest.skip("set ZHIXING_TEST_DATABASE_URL to run PostgreSQL integration tests")
+    _prepare_database(database_url)
+    repository = PostgresMarketDataRepository(database_url, max_connections=4)
+    batch_id: str | None = None
+    try:
+        bars = {code: Bar(code, TARGET, close=Decimal("10")) for code in TEST_CODES}
+        with repository:
+
+            def upsert(code: str) -> WriteResult:
+                return repository.upsert_bars((bars[code],), WINDOW, full_snapshot=True)
+
+            with ThreadPoolExecutor(max_workers=2) as executor:
+                results = tuple(executor.map(upsert, TEST_CODES))
+            assert [result.inserted for result in results] == [1, 1]
+
+            with pytest.raises(MarketDataRepositoryError):
+                repository.upsert_bars(
+                    (
+                        Bar(TEST_CODES[0], TARGET, close=Decimal("11")),
+                        Bar(TEST_CODES[0], TARGET, close=Decimal("12")),
+                    ),
+                    WINDOW,
+                    full_snapshot=True,
+                )
+
+            unchanged = repository.upsert_daily_basic(
+                (DailyBasic(TEST_CODES[0], TARGET, close=Decimal("10")),),
+                WINDOW,
+            )
+            assert unchanged.inserted == 1
+            assert repository.count_valid_stocks(TARGET) == 1
+
+            batch_id = "9919-pool-test"
+            outcomes = (
+                SyncItemOutcome("bar", TEST_CODES[0], "success", WriteResult(inserted=1)),
+                SyncItemOutcome(
+                    "bar",
+                    TEST_CODES[1],
+                    "failed",
+                    failure=SyncFailure("bar", TEST_CODES[1], "source_error", "safe failure"),
+                ),
+            )
+            # Use the real schema row directly because the test repository's
+            # create_batch API generates a UUID for normal production calls.
+            with _database(database_url) as connection:
+                connection.execute(
+                    """
+                    INSERT INTO market_sync_batch
+                        (id, target_trade_date, window_start, mode, status, target_count)
+                    VALUES (%s, %s, %s, 'daily', 'running', 2)
+                    """,
+                    (batch_id, TARGET, TARGET),
+                )
+            repository.record_items(batch_id, outcomes)
+            with _database(database_url) as connection:
+                count = connection.execute(
+                    "SELECT count(*) FROM market_sync_item WHERE batch_id = %s",
+                    (batch_id,),
+                ).fetchone()[0]
+            assert count == 2
+    finally:
+        repository.close()
+        _cleanup(database_url)

zhixing-server/tests/unit/market_data/test_csv_snapshot.py

@@ -5,7 +5,11 @@ from pathlib import Path
 import pytest
 
 from zhixing_server.modules.market_data.domain.models import Bar, DailyBasic
-from zhixing_server.modules.market_data.infrastructure.csv_snapshot import CsvSnapshotStore
+from zhixing_server.modules.market_data.infrastructure.csv_snapshot import (
+    BAR_COLUMNS,
+    CsvSnapshotStore,
+    SnapshotReadError,
+)
 
 
 def make_bar(trade_date: date, close: str = "10") -> Bar:
@@ -44,3 +48,24 @@ def test_daily_basic_snapshot_rejects_duplicate_codes(tmp_path: Path) -> None:
 
     with pytest.raises(ValueError, match="duplicate"):
         store.stage_daily_basic(target, (make_basic(target), make_basic(target)))
+
+
+def test_readers_reject_empty_formal_snapshots(tmp_path: Path) -> None:
+    store = CsvSnapshotStore(tmp_path)
+    path = store.bars_path("000001.SZ")
+    path.parent.mkdir(parents=True)
+    path.write_text(",".join(BAR_COLUMNS) + "\n", encoding="utf-8")
+
+    with pytest.raises(SnapshotReadError, match="empty"):
+        store.read_bars("000001.SZ")
+
+
+def test_invalid_daily_basic_path_is_reported_without_opening_content(tmp_path: Path) -> None:
+    store = CsvSnapshotStore(tmp_path)
+    invalid_path = tmp_path / "daily-basic" / "2024" / "20241301.csv"
+    invalid_path.parent.mkdir(parents=True)
+    invalid_path.write_text("not parsed", encoding="utf-8")
+
+    assert store.list_invalid_daily_basic_snapshot_files() == (
+        ("daily-basic/2024/20241301.csv", "window_out_of_bounds"),
+    )

zhixing-server/tests/unit/market_data/test_domain.py

@@ -13,6 +13,7 @@ from zhixing_server.modules.market_data.domain.models import (
     DailyBasic,
     Stock,
     SyncWindow,
+    decimal_text,
 )
 from zhixing_server.modules.market_data.domain.rules import filter_current_hs_a_stocks
 
@@ -65,6 +66,12 @@ def test_daily_basic_maps_nan_to_none_but_rejects_infinite_values() -> None:
             )
 
 
+def test_decimal_text_rejects_non_finite_domain_values() -> None:
+    for value in (Decimal("NaN"), Decimal("Infinity"), Decimal("-Infinity")):
+        with pytest.raises(ValueError, match="must be finite"):
+            decimal_text(value)
+
+
 def test_universe_keeps_current_non_st_hs_a_stocks() -> None:
     stocks = (
         Stock("000001.SZ", "平安银行", exchange="SZSE", list_status="L"),

zhixing-server/tests/unit/market_data/test_integrity.py

@@ -0,0 +1,345 @@
+from collections.abc import Generator, Iterable
+from contextlib import contextmanager
+from datetime import date
+from decimal import Decimal
+
+from fastapi.testclient import TestClient
+
+from zhixing_server.bootstrap.app import create_app
+from zhixing_server.modules.market_data.application.integrity import RunMarketIntegrityCheck
+from zhixing_server.modules.market_data.domain.integrity import (
+    IntegrityCheckInProgress,
+    IntegrityCheckPage,
+    IntegrityCheckQuery,
+    IntegrityCheckRun,
+    IntegrityCheckStoreError,
+    IntegrityIssue,
+)
+from zhixing_server.modules.market_data.domain.models import Bar, DailyBasic, Stock, SyncWindow
+from zhixing_server.modules.market_data.infrastructure.csv_snapshot import SnapshotReadError
+from zhixing_server.modules.market_data.presentation.integrity import get_market_integrity_service
+
+WINDOW = SyncWindow(date(2024, 1, 2), date(2024, 1, 3))
+STOCK = Stock("000001.SZ", "平安银行", exchange="SZSE")
+BARS = (
+    Bar(STOCK.ts_code, date(2024, 1, 2), close=Decimal("10")),
+    Bar(STOCK.ts_code, date(2024, 1, 3), close=Decimal("11")),
+)
+BASICS = (
+    DailyBasic(STOCK.ts_code, date(2024, 1, 2), close=Decimal("10")),
+    DailyBasic(STOCK.ts_code, date(2024, 1, 3), close=Decimal("11")),
+)
+
+
+class FakeReader:
+    def __init__(self, *, acquired: bool = True) -> None:
+        self.acquired = acquired
+        self.stocks = (STOCK,)
+        self.bars: tuple[Bar, ...] = BARS
+        self.basics: tuple[DailyBasic, ...] = BASICS
+        self.bar_rows_read = 0
+        self.basic_rows_read = 0
+
+    def latest_successful_window(self) -> SyncWindow:
+        return WINDOW
+
+    def active_stocks(self) -> tuple[Stock, ...]:
+        return self.stocks
+
+    def list_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        return (STOCK.ts_code,)
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> tuple[date, ...]:
+        return (date(2024, 1, 2), date(2024, 1, 3))
+
+    def iter_bars(self, window: SyncWindow) -> Iterable[Bar]:
+        for row in self.bars:
+            self.bar_rows_read += 1
+            yield row
+
+    def iter_daily_basic(self, window: SyncWindow) -> Iterable[DailyBasic]:
+        for row in self.basics:
+            self.basic_rows_read += 1
+            yield row
+
+    @contextmanager
+    def advisory_lock(self, key: int) -> Generator[bool, None, None]:
+        yield self.acquired
+
+
+class BrokenKeyReader(FakeReader):
+    """Reader whose storage key query fails before a check can be claimed."""
+
+    def list_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        raise RuntimeError("database unavailable")
+
+
+class FakeSnapshots:
+    def __init__(self) -> None:
+        self.stocks: tuple[Stock, ...] | None = (STOCK,)
+        self.bars: tuple[Bar, ...] | None = BARS
+        self.basics: dict[date, tuple[DailyBasic, ...]] = {
+            date(2024, 1, 2): (BASICS[0],),
+            date(2024, 1, 3): (BASICS[1],),
+        }
+        self.parse_bar = False
+
+    def list_bar_codes(self, window: SyncWindow) -> tuple[str, ...]:
+        return (STOCK.ts_code,) if self.bars is not None else ()
+
+    def list_daily_basic_dates(self, window: SyncWindow) -> tuple[date, ...]:
+        return tuple(self.basics)
+
+    def read_stocks(self) -> tuple[Stock, ...] | None:
+        return self.stocks
+
+    def read_bars(self, ts_code: str) -> tuple[Bar, ...] | None:
+        if self.parse_bar:
+            raise SnapshotReadError("bad bar csv")
+        return self.bars
+
+    def read_daily_basic(self, trade_date: date) -> tuple[DailyBasic, ...] | None:
+        return self.basics.get(trade_date)
+
+
+class FakeStore:
+    def __init__(self) -> None:
+        self.run = IntegrityCheckRun("check-1", "running", WINDOW, 4)
+        self.issues: list[IntegrityIssue] = []
+        self.progress: tuple[int, int] = (0, 0)
+
+    def recover_stale_running(self, lock_key: int, stale_after_seconds: int) -> int:
+        return 0
+
+    def create_running(self, window: SyncWindow, target_count: int) -> IntegrityCheckRun:
+        self.run = IntegrityCheckRun("check-1", "running", window, target_count)
+        return self.run
+
+    def update_progress(self, check_id: str, checked_count: int, issue_count: int) -> None:
+        self.progress = (checked_count, issue_count)
+        self.run = IntegrityCheckRun(
+            self.run.id,
+            self.run.status,
+            self.run.window,
+            self.run.target_count,
+            checked_count,
+            issue_count,
+        )
+
+    def record_issues(self, issues: Iterable[IntegrityIssue]) -> None:
+        self.issues.extend(issues)
+
+    def finish(
+        self,
+        check_id: str,
+        status: str,
+        *,
+        issue_count: int,
+        error_type: str | None = None,
+        error_message: str | None = None,
+    ) -> None:
+        self.run = IntegrityCheckRun(
+            self.run.id,
+            status,  # type: ignore[arg-type]
+            self.run.window,
+            self.run.target_count,
+            self.progress[0],
+            issue_count,
+            error_type,
+            error_message,
+        )
+
+    def get(self, check_id: str, query: IntegrityCheckQuery) -> IntegrityCheckPage:
+        return IntegrityCheckPage(
+            self.run,
+            query.page,
+            query.page_size,
+            len(self.issues),
+            tuple(self.issues[(query.page - 1) * query.page_size : query.page * query.page_size]),
+        )
+
+    def get_latest(self, query: IntegrityCheckQuery) -> IntegrityCheckPage:
+        return self.get(self.run.id, query)
+
+
+def test_integrity_check_passes_without_writing_facts() -> None:
+    reader = FakeReader()
+    snapshots = FakeSnapshots()
+    store = FakeStore()
+    service = RunMarketIntegrityCheck(reader, snapshots, store)
+
+    run = service.prepare()
+    service.execute(run.id)
+
+    assert store.run.status == "passed"
+    assert store.issues == []
+    assert reader.bar_rows_read == len(BARS)
+    assert reader.basic_rows_read == len(BASICS)
+
+
+def test_prepare_does_not_hide_storage_key_query_failure() -> None:
+    service = RunMarketIntegrityCheck(BrokenKeyReader(), FakeSnapshots(), FakeStore())
+
+    try:
+        service.prepare()
+    except RuntimeError as exc:
+        assert str(exc) == "database unavailable"
+    else:
+        raise AssertionError("storage failure must not claim a running check")
+
+
+def test_integrity_check_reports_stable_content_and_missing_types() -> None:
+    reader = FakeReader()
+    snapshots = FakeSnapshots()
+    snapshots.bars = (Bar(STOCK.ts_code, date(2024, 1, 2), close=Decimal("99")),)
+    snapshots.basics.pop(date(2024, 1, 3))
+    store = FakeStore()
+    service = RunMarketIntegrityCheck(reader, snapshots, store)
+
+    service.execute(service.prepare().id)
+
+    assert store.run.status == "issues_found"
+    assert {issue.issue_type for issue in store.issues} >= {
+        "content_mismatch",
+        "missing_csv",
+    }
+    keys = [issue.issue_key for issue in store.issues]
+    assert keys == list(dict.fromkeys(keys))
+
+
+def test_csv_parse_error_does_not_stop_other_groups() -> None:
+    reader = FakeReader()
+    snapshots = FakeSnapshots()
+    snapshots.parse_bar = True
+    store = FakeStore()
+    service = RunMarketIntegrityCheck(reader, snapshots, store)
+
+    service.execute(service.prepare().id)
+
+    assert store.run.status == "issues_found"
+    assert any(issue.issue_type == "parse_error" for issue in store.issues)
+    assert not any(
+        issue.item_kind == "bar" and issue.issue_type == "missing_csv" for issue in store.issues
+    )
+    assert reader.basic_rows_read == len(BASICS)
+
+
+def test_window_only_bar_group_does_not_become_extra_csv() -> None:
+    reader = FakeReader()
+    reader.bars = ()
+    snapshots = FakeSnapshots()
+    snapshots.bars = (Bar(STOCK.ts_code, date(2025, 1, 2), close=Decimal("10")),)
+    store = FakeStore()
+    service = RunMarketIntegrityCheck(reader, snapshots, store)
+
+    service.execute(service.prepare().id)
+
+    bar_issues = [issue for issue in store.issues if issue.item_kind == "bar"]
+    assert {issue.issue_type for issue in bar_issues} == {"window_out_of_bounds"}
+
+
+def test_integrity_lock_conflict_converges_to_failed() -> None:
+    reader = FakeReader(acquired=False)
+    store = FakeStore()
+    service = RunMarketIntegrityCheck(reader, FakeSnapshots(), store)
+
+    service.execute(service.prepare().id)
+
+    assert store.run.status == "failed"
+    assert store.run.error_type == "lock_unavailable"
+
+
+class FakeHttpService:
+    def __init__(self, result: IntegrityCheckPage | None = None) -> None:
+        self.result = result
+        self.executed = False
+        self.mode = "ok"
+
+    def prepare(self) -> IntegrityCheckRun:
+        if self.mode == "in_progress":
+            raise IntegrityCheckInProgress("already running")
+        if self.mode == "storage_error":
+            raise IntegrityCheckStoreError("storage unavailable")
+        return IntegrityCheckRun("http-check", "running", WINDOW, 1)
+
+    def execute(self, check_id: str) -> None:
+        self.executed = True
+
+    def get(self, check_id: str, *, query: IntegrityCheckQuery) -> IntegrityCheckPage | None:
+        if self.mode == "storage_error":
+            raise IntegrityCheckStoreError("storage unavailable")
+        return self.result
+
+    def get_latest(self, *, query: IntegrityCheckQuery) -> IntegrityCheckPage | None:
+        if self.mode == "storage_error":
+            raise IntegrityCheckStoreError("storage unavailable")
+        return self.result
+
+
+def test_integrity_http_returns_202_and_paginates_report() -> None:
+    issue = IntegrityIssue.build("http-check", "bar", "000001.SZ:2024-01-02", "parse_error", "bad")
+    result = IntegrityCheckPage(
+        IntegrityCheckRun("http-check", "issues_found", WINDOW, 1, 1, 1),
+        page=2,
+        page_size=1,
+        issues_total=1,
+        issues=(issue,),
+    )
+    service = FakeHttpService(result)
+    app = create_app()
+    app.dependency_overrides[get_market_integrity_service] = lambda: service
+    client = TestClient(app)
+
+    accepted = client.post("/api/v1/market-data/integrity-checks")
+    report = client.get(
+        "/api/v1/market-data/integrity-checks/http-check",
+        params={"page": 2, "page_size": 1},
+    )
+
+    assert accepted.status_code == 202
+    assert accepted.json()["check_id"] == "http-check"
+    assert service.executed is True
+    assert report.status_code == 200
+    assert report.json()["issues"][0]["issue_type"] == "parse_error"
+    assert report.json()["page"] == 2
+
+
+def test_integrity_http_latest_without_report_is_no_data() -> None:
+    service = FakeHttpService(None)
+    app = create_app()
+    app.dependency_overrides[get_market_integrity_service] = lambda: service
+
+    response = TestClient(app).get("/api/v1/market-data/integrity-checks/latest")
+
+    assert response.status_code == 200
+    assert response.json()["status"] == "no_data"
+    assert response.json()["issues"] == []
+
+
+def test_integrity_http_maps_running_conflict_to_409() -> None:
+    service = FakeHttpService()
+    service.mode = "in_progress"
+    app = create_app()
+    app.dependency_overrides[get_market_integrity_service] = lambda: service
+
+    response = TestClient(app).post("/api/v1/market-data/integrity-checks")
+
+    assert response.status_code == 409
+    assert response.json()["detail"]["code"] == "integrity_check_in_progress"
+
+
+def test_integrity_http_maps_missing_report_and_storage_to_404_and_503() -> None:
+    missing_service = FakeHttpService(None)
+    app = create_app()
+    app.dependency_overrides[get_market_integrity_service] = lambda: missing_service
+    missing = TestClient(app).get("/api/v1/market-data/integrity-checks/unknown")
+    assert missing.status_code == 404
+    assert missing.json()["detail"]["code"] == "integrity_check_not_found"
+
+    storage_service = FakeHttpService(None)
+    storage_service.mode = "storage_error"
+    app = create_app()
+    app.dependency_overrides[get_market_integrity_service] = lambda: storage_service
+    unavailable = TestClient(app).get("/api/v1/market-data/integrity-checks/latest")
+    assert unavailable.status_code == 503
+    assert unavailable.json()["detail"]["code"] == "integrity_storage_unavailable"

zhixing-server/tests/unit/market_data/test_sync_concurrency.py

@@ -0,0 +1,241 @@
+from __future__ import annotations
+
+import threading
+import time
+from collections.abc import Generator, Iterable, Sequence
+from contextlib import contextmanager
+from datetime import date
+from decimal import Decimal
+from pathlib import Path
+
+from zhixing_server.modules.market_data.application.sync import (
+    SyncBatchSummary,
+    SyncItemOutcome,
+    SyncMarketData,
+    SyncMarketDataCommand,
+)
+from zhixing_server.modules.market_data.domain.models import Bar, DailyBasic, Stock, SyncWindow
+from zhixing_server.modules.market_data.domain.ports import WriteResult
+from zhixing_server.modules.market_data.infrastructure.csv_snapshot import CsvSnapshotStore
+
+
+class ConcurrentSource:
+    def __init__(
+        self, target: date, delays: dict[str, float], failed_code: str | None = None
+    ) -> None:
+        self.target = target
+        self.stocks = tuple(
+            Stock(f"{index:06d}.SZ", f"测试{index}", exchange="SZSE", list_status="L")
+            for index in range(1, 6)
+        )
+        self.delays = delays
+        self.failed_code = failed_code
+        self._lock = threading.Lock()
+        self.active = 0
+        self.max_active = 0
+
+    def fetch_stocks(self) -> Sequence[Stock]:
+        return self.stocks
+
+    def fetch_open_dates(self, start: date, end: date) -> Sequence[date]:
+        return (self.target,) if start <= self.target <= end else ()
+
+    def fetch_daily_basic(self, trade_date: date) -> Sequence[DailyBasic]:
+        return tuple(
+            DailyBasic(stock.ts_code, trade_date, close=Decimal("10")) for stock in self.stocks
+        )
+
+    def fetch_bars(self, ts_code: str, window: SyncWindow) -> Sequence[Bar]:
+        with self._lock:
+            self.active += 1
+            self.max_active = max(self.max_active, self.active)
+        try:
+            time.sleep(self.delays.get(ts_code, 0))
+            if ts_code == self.failed_code:
+                raise RuntimeError("simulated source failure")
+            return (Bar(ts_code, self.target, close=Decimal("10")),)
+        finally:
+            with self._lock:
+                self.active -= 1
+
+
+class ConcurrentRepository:
+    def __init__(self) -> None:
+        self.bars: dict[tuple[str, date], Bar] = {}
+        self.daily_basic: dict[tuple[str, date], DailyBasic] = {}
+        self.audit_batches: list[tuple[SyncItemOutcome, ...]] = []
+        self.batch_summary: tuple[str, int, Decimal, bool] | None = None
+        self._lock = threading.Lock()
+
+    @contextmanager
+    def advisory_lock(self, key: int) -> Generator[bool, None, None]:
+        yield True
+
+    def upsert_stocks(self, rows: Iterable[Stock]) -> WriteResult:
+        return WriteResult(inserted=len(tuple(rows)))
+
+    def upsert_bars(
+        self,
+        rows: Iterable[Bar],
+        window: SyncWindow,
+        *,
+        full_snapshot: bool,
+    ) -> WriteResult:
+        records = tuple(rows)
+        inserted = 0
+        for row in records:
+            with self._lock:
+                if (row.ts_code, row.trade_date) not in self.bars:
+                    inserted += 1
+                self.bars[(row.ts_code, row.trade_date)] = row
+        return WriteResult(inserted=inserted)
+
+    def upsert_daily_basic(self, rows: Iterable[DailyBasic], window: SyncWindow) -> WriteResult:
+        records = tuple(rows)
+        with self._lock:
+            for row in records:
+                self.daily_basic[(row.ts_code, row.trade_date)] = row
+        return WriteResult(inserted=len(records))
+
+    def purge_before(self, window: SyncWindow) -> None:
+        return None
+
+    def create_batch(
+        self,
+        target_trade_date: date,
+        window: SyncWindow,
+        mode: str,
+        parent_batch_id: str | None,
+        target_count: int,
+    ) -> str:
+        return "batch-test"
+
+    def record_batch(
+        self,
+        batch_id: str,
+        status: str,
+        valid_count: int,
+        coverage: Decimal,
+        strategy_eligible: bool,
+    ) -> None:
+        self.batch_summary = (status, valid_count, coverage, strategy_eligible)
+
+    def record_items(self, batch_id: str, outcomes: Iterable[object]) -> None:
+        self.audit_batches.append(tuple(outcomes))  # type: ignore[arg-type]
+
+    def record_item(
+        self,
+        batch_id: str,
+        item_kind: str,
+        item_key: str,
+        status: str,
+        result: WriteResult,
+        fingerprint: str | None = None,
+        error_type: str | None = None,
+        error_message: str | None = None,
+    ) -> None:
+        return None
+
+    def count_valid_stocks(self, trade_date: date) -> int:
+        return sum(
+            1
+            for ts_code, current_date in self.bars
+            if current_date == trade_date and (ts_code, trade_date) in self.daily_basic
+        )
+
+    def failed_items(self, parent_batch_id: str) -> tuple[tuple[str, str], ...]:
+        return ()
+
+    def has_bar(self, ts_code: str, trade_date: date) -> bool:
+        raise AssertionError("coverage must use count_valid_stocks")
+
+    def has_daily_basic(self, ts_code: str, trade_date: date) -> bool:
+        raise AssertionError("coverage must use count_valid_stocks")
+
+
+def _run_sync(
+    tmp_path: Path, delays: dict[str, float], failed_code: str | None = None
+) -> tuple[SyncBatchSummary, ConcurrentSource, ConcurrentRepository]:
+    target = date(2024, 1, 2)
+    source = ConcurrentSource(target, delays, failed_code)
+    repository = ConcurrentRepository()
+    summary = SyncMarketData(
+        source,
+        CsvSnapshotStore(tmp_path),
+        repository,
+        today=target,
+        max_workers=2,
+    ).execute(SyncMarketDataCommand(target_trade_date=target))
+    return summary, source, repository
+
+
+def test_bar_workers_are_bounded_and_audit_is_batched(tmp_path: Path) -> None:
+    summary, source, repository = _run_sync(
+        tmp_path,
+        {"000001.SZ": 0.03, "000002.SZ": 0.01, "000003.SZ": 0.02, "000004.SZ": 0},
+    )
+
+    assert summary.status == "success"
+    assert source.max_active <= 2
+    assert summary.valid_count == 5
+    assert sum(len(batch) for batch in repository.audit_batches) == 7
+
+
+def test_one_bar_failure_does_not_publish_a_csv_or_reduce_other_facts(tmp_path: Path) -> None:
+    failed_code = "000003.SZ"
+    summary, _, repository = _run_sync(
+        tmp_path,
+        {"000001.SZ": 0.02, "000002.SZ": 0.01, failed_code: 0},
+        failed_code,
+    )
+
+    assert summary.status == "partial_success"
+    assert summary.valid_count == 4
+    assert [failure.item_key for failure in summary.failures if failure.item_kind == "bar"] == [
+        failed_code
+    ]
+    assert not (tmp_path / "bars" / f"{failed_code}.csv").exists()
+    assert not list((tmp_path / "bars").glob(f".{failed_code}.csv.*.tmp"))
+    assert len(repository.bars) == 4
+
+
+def test_completion_order_does_not_change_aggregate_counts(tmp_path: Path) -> None:
+    first, _, _ = _run_sync(
+        tmp_path / "first",
+        {"000001.SZ": 0.03, "000002.SZ": 0, "000003.SZ": 0.02},
+    )
+    second, _, _ = _run_sync(
+        tmp_path / "second",
+        {"000001.SZ": 0, "000002.SZ": 0.03, "000003.SZ": 0.01},
+    )
+
+    assert (
+        first.status,
+        first.valid_count,
+        first.inserted_count,
+        first.updated_count,
+        first.unchanged_count,
+        first.failures,
+    ) == (
+        second.status,
+        second.valid_count,
+        second.inserted_count,
+        second.updated_count,
+        second.unchanged_count,
+        second.failures,
+    )
+
+
+def test_partial_success_always_uses_incomplete_exit_code() -> None:
+    summary = SyncBatchSummary(
+        batch_id="batch-test",
+        target_trade_date=date(2024, 1, 2),
+        window=SyncWindow(start=date(2018, 1, 2), end=date(2024, 1, 2)),
+        status="partial_success",
+        target_count=100,
+        valid_count=99,
+        coverage=Decimal("0.99"),
+        strategy_eligible=True,
+    )
+
+    assert summary.exit_code == 2

zhixing-server/tests/unit/market_data/test_tushare.py

@@ -4,7 +4,10 @@ import pytest
 import tushare as ts  # pyright: ignore[reportMissingTypeStubs]
 
 from zhixing_server.modules.market_data.domain.models import SyncWindow
-from zhixing_server.modules.market_data.infrastructure.tushare import TushareAdapter
+from zhixing_server.modules.market_data.infrastructure.tushare import (
+    RequestCoordinator,
+    TushareAdapter,
+)
 
 
 def test_from_token_reuses_api_client_for_pro_bar(
@@ -44,3 +47,83 @@ def test_from_token_reuses_api_client_for_pro_bar(
     assert calls
     assert calls[0]["api"] is created_client
     assert calls[0]["adj"] == "qfq"
+    assert calls[0]["retry_count"] == 1
+
+
+def test_rate_limit_cooldown_is_shared_by_following_requests() -> None:
+    current = [0.0]
+    waits: list[float] = []
+    calls: list[float] = []
+
+    def clock() -> float:
+        return current[0]
+
+    def wait(seconds: float) -> None:
+        waits.append(seconds)
+        current[0] += seconds
+
+    coordinator = RequestCoordinator(
+        max_retries=0,
+        cooldown_seconds=(60, 120, 180),
+        clock=clock,
+        wait_fn=wait,
+        sleep_fn=wait,
+    )
+
+    def rate_limited() -> object:
+        calls.append(current[0])
+        raise RuntimeError("HTTP 429: too many requests")
+
+    with pytest.raises(RuntimeError):
+        coordinator.call("daily", rate_limited)
+
+    assert calls == [0]
+    assert coordinator.cooldown_until == 60
+
+    result = coordinator.call("adj_factor", lambda: calls.append(current[0]) or "ok")
+
+    assert result == "ok"
+    assert calls == [0, 60]
+    assert waits == [60]
+
+
+def test_pro_bar_qfq_calls_are_bound_to_the_shared_coordinator(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    class Client:
+        def __init__(self) -> None:
+            self.calls: list[str] = []
+
+        def daily(self, **kwargs: object) -> object:
+            self.calls.append("daily")
+            return object()
+
+        def adj_factor(self, **kwargs: object) -> object:
+            self.calls.append("adj_factor")
+            return object()
+
+    client = Client()
+    pro_bar_calls: list[dict[str, object]] = []
+
+    def fake_pro_api(token: str) -> object:
+        return client
+
+    def fake_pro_bar(**kwargs: object) -> list[dict[str, object]]:
+        pro_bar_calls.append(kwargs)
+        api = kwargs["api"]
+        assert api is client
+        api.daily(ts_code="000001.SZ")  # type: ignore[union-attr]
+        api.adj_factor(ts_code="000001.SZ")  # type: ignore[union-attr]
+        return [{"ts_code": "000001.SZ", "trade_date": "20240102", "close": "10"}]
+
+    monkeypatch.setattr(ts, "pro_api", fake_pro_api)
+    monkeypatch.setattr(ts, "pro_bar", fake_pro_bar)
+
+    adapter = TushareAdapter.from_token("test-token", request_interval_seconds=0)
+    adapter.fetch_bars(
+        "000001.SZ",
+        SyncWindow(start=date(2024, 1, 2), end=date(2024, 1, 2)),
+    )
+
+    assert client.calls == ["daily", "adj_factor"]
+    assert pro_bar_calls[0]["retry_count"] == 1

zhixing-server/tests/unit/test_config.py

@@ -0,0 +1,16 @@
+import pytest
+from pydantic import ValidationError
+
+from zhixing_server.bootstrap.config import Settings
+
+
+def test_market_data_workers_default_to_eight(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.delenv("ZHIXING_MARKET_DATA_MAX_WORKERS", raising=False)
+    settings = Settings()
+
+    assert settings.market_data_max_workers == 8
+
+
+def test_market_data_workers_must_be_positive() -> None:
+    with pytest.raises(ValidationError):
+        Settings(market_data_max_workers=0)

zhixing-server/uv.lock

@@ -412,6 +412,9 @@ wheels = [
 binary = [
     { name = "psycopg-binary", marker = "implementation_name != 'pypy'" },
 ]
+pool = [
+    { name = "psycopg-pool" },
+]
 
 [[package]]
 name = "psycopg-binary"
@@ -431,6 +434,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/25/8f/81dcbc2e8454b74d14881275ea45f00791052dac531a9fa8be1730d1685b/psycopg_binary-3.3.4-cp312-cp312-win_amd64.whl", hash = "sha256:494ca54901be8cf9eb7e02c25b731f2317c378efa44f43e8f9bd0e1184ae7be4", size = 3560782, upload-time = "2026-05-01T23:29:11.967Z" },
 ]
 
+[[package]]
+name = "psycopg-pool"
+version = "3.3.1"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/90/82/7a23d26039827ecd4ebe93905651029ddd307c5182ad59296dfb6f67b528/psycopg_pool-3.3.1.tar.gz", hash = "sha256:b10b10b7a175d5cc1592147dc5b7eec8a9e0834eb3ed2c4a92c858e2f51eb63c", size = 31661, upload-time = "2026-05-01T23:31:59.809Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/37/ed/89c2c620af0e1660354cd8aabf9f5b21f911597ce22acb37c805d6c86bc8/psycopg_pool-3.3.1-py3-none-any.whl", hash = "sha256:2af5b432941c4c9ad5c87b3fa410aec910ec8f7c122855897983a06c45f2e4b5", size = 40023, upload-time = "2026-05-01T23:31:53.136Z" },
+]
+
 [[package]]
 name = "pydantic"
 version = "2.13.4"
@@ -879,7 +894,7 @@ dependencies = [
     { name = "fastapi" },
     { name = "numpy" },
     { name = "pandas" },
-    { name = "psycopg", extra = ["binary"] },
+    { name = "psycopg", extra = ["binary", "pool"] },
     { name = "pydantic-settings" },
     { name = "sqlalchemy" },
     { name = "tushare" },
@@ -902,7 +917,7 @@ requires-dist = [
     { name = "fastapi", specifier = ">=0.141.1" },
     { name = "numpy", specifier = ">=2.4.0" },
     { name = "pandas", specifier = ">=2.3.3" },
-    { name = "psycopg", extras = ["binary"], specifier = ">=3.3.2" },
+    { name = "psycopg", extras = ["binary", "pool"], specifier = ">=3.3.2" },
     { name = "pydantic-settings", specifier = ">=2.14.2" },
     { name = "sqlalchemy", specifier = ">=2.0.46" },
     { name = "tushare", specifier = ">=1.4.24" },

zhixing-web/src/app/layout/app-layout.tsx

@@ -24,6 +24,7 @@ import {
 function useActiveRoutePath() {
   const matchRoute = useMatchRoute()
   if (matchRoute({ to: "/selection", fuzzy: true })) return "/selection"
+  if (matchRoute({ to: "/sync", fuzzy: true })) return "/sync"
   if (matchRoute({ to: "/components", fuzzy: true })) return "/components"
   if (matchRoute({ to: "/", fuzzy: false })) return "/"
   return "/"
@@ -244,7 +245,7 @@ function MoreSheet({
           <DialogHeader>
             <DialogTitle>更多功能</DialogTitle>
             <DialogDescription>
-              行情数据与同步任务尚未上线，暂无更多可用入口。
+              行情数据尚未上线，暂无更多可用入口。
             </DialogDescription>
           </DialogHeader>
         </DialogContent>

zhixing-web/src/app/layout/navigation.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from "vitest"
+
+import {
+  mobilePrimaryNavigation,
+  primaryNavigation,
+  routePresentation,
+} from "./navigation"
+
+describe("sync navigation", () => {
+  it("exposes the sync route in desktop and mobile navigation", () => {
+    const sync = primaryNavigation.find((item) => item.id === "sync")
+
+    expect(sync).toMatchObject({
+      availability: "available",
+      label: "同步任务",
+      to: "/sync",
+    })
+    expect(mobilePrimaryNavigation).toContain(sync)
+  })
+
+  it("provides the active route presentation for sync", () => {
+    expect(routePresentation["/sync"]).toEqual({
+      breadcrumb: "研究工作台",
+      id: "sync",
+      title: "市场数据完整性检查",
+    })
+  })
+})

zhixing-web/src/app/layout/navigation.ts

@@ -35,9 +35,9 @@ export const primaryNavigation: readonly NavigationItem[] = [
   {
     id: "sync",
     label: "同步任务",
-    to: null,
+    to: "/sync",
     icon: ClipboardCheck,
-    availability: "unavailable",
+    availability: "available",
   },
   {
     id: "selection",
@@ -79,6 +79,11 @@ export const routePresentation: Record<string, RoutePresentation> = {
     breadcrumb: "研究工作台",
     title: "知行 B1 执行结果",
   },
+  "/sync": {
+    id: "sync",
+    breadcrumb: "研究工作台",
+    title: "市场数据完整性检查",
+  },
   "/components": {
     id: "components",
     breadcrumb: "研究工作台",

zhixing-web/src/features/sync/api/sync.api.test.ts

@@ -0,0 +1,59 @@
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+const requestJson = vi.hoisted(() => vi.fn())
+
+vi.mock("@/shared/api/request-json", () => ({ requestJson }))
+
+import {
+  getIntegrityCheck,
+  getLatestIntegrityCheck,
+  triggerIntegrityCheck,
+} from "./sync.api"
+
+describe("sync API adapters", () => {
+  beforeEach(() => {
+    requestJson.mockReset()
+  })
+
+  it("triggers one read-only integrity check through the POST endpoint", async () => {
+    const signal = new AbortController().signal
+
+    await triggerIntegrityCheck(signal)
+
+    expect(requestJson).toHaveBeenCalledWith(
+      "/api/v1/market-data/integrity-checks",
+      {
+        method: "POST",
+        signal,
+      },
+    )
+  })
+
+  it("uses the latest report pagination contract", async () => {
+    await getLatestIntegrityCheck({ page: 2, pageSize: 20 })
+
+    const [input, init] = requestJson.mock.calls[0] as [
+      string,
+      { signal?: AbortSignal },
+    ]
+    const params = new URL(input, "http://localhost").searchParams
+
+    expect(input).toContain("/api/v1/market-data/integrity-checks/latest?")
+    expect(params.get("page")).toBe("2")
+    expect(params.get("page_size")).toBe("20")
+    expect(init).toEqual({ signal: undefined })
+  })
+
+  it("encodes a check id while keeping the paged check contract", async () => {
+    await getIntegrityCheck("check/with spaces", { page: 3, pageSize: 50 })
+
+    const [input] = requestJson.mock.calls[0] as [string]
+    const params = new URL(input, "http://localhost").searchParams
+
+    expect(input).toContain(
+      "/api/v1/market-data/integrity-checks/check%2Fwith%20spaces?",
+    )
+    expect(params.get("page")).toBe("3")
+    expect(params.get("page_size")).toBe("50")
+  })
+})

zhixing-web/src/features/sync/api/sync.api.ts

@@ -0,0 +1,50 @@
+import { requestJson } from "@/shared/api/request-json"
+
+import {
+  defaultMarketIntegrityQuery,
+  type IntegrityCheckAccepted,
+  type MarketIntegrityCheck,
+  type MarketIntegrityQuery,
+} from "./sync.types"
+
+const integrityChecksPath = "/api/v1/market-data/integrity-checks"
+
+export function triggerIntegrityCheck(signal?: AbortSignal) {
+  return requestJson<IntegrityCheckAccepted>(integrityChecksPath, {
+    method: "POST",
+    signal,
+  })
+}
+
+export function getLatestIntegrityCheck(
+  query: MarketIntegrityQuery = defaultMarketIntegrityQuery,
+  signal?: AbortSignal,
+) {
+  return requestJson<MarketIntegrityCheck>(
+    `${integrityChecksPath}/latest?${buildQuery(query)}`,
+    { signal },
+  )
+}
+
+export function getIntegrityCheck(
+  checkId: string,
+  query: MarketIntegrityQuery = defaultMarketIntegrityQuery,
+  signal?: AbortSignal,
+) {
+  return requestJson<MarketIntegrityCheck>(
+    `${integrityChecksPath}/${encodeURIComponent(checkId)}?${buildQuery(query)}`,
+    { signal },
+  )
+}
+
+function buildQuery(query: MarketIntegrityQuery) {
+  const params = new URLSearchParams({
+    page: String(query.page),
+    page_size: String(query.pageSize),
+  })
+  return params.toString()
+}
+
+export const getMarketIntegrityCheck = getIntegrityCheck
+export const getLatestMarketIntegrityCheck = getLatestIntegrityCheck
+export const triggerMarketIntegrityCheck = triggerIntegrityCheck

zhixing-web/src/features/sync/api/sync.query.test.ts

@@ -0,0 +1,111 @@
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+import { ApiError } from "@/shared/api/request-json"
+
+const queryHooks = vi.hoisted(() => ({
+  useMutation: vi.fn(),
+  useQuery: vi.fn(),
+  useQueryClient: vi.fn(),
+}))
+
+const api = vi.hoisted(() => ({
+  getIntegrityCheck: vi.fn(),
+  getLatestIntegrityCheck: vi.fn(),
+  triggerIntegrityCheck: vi.fn(),
+}))
+
+vi.mock("@tanstack/react-query", () => queryHooks)
+vi.mock("./sync.api", () => api)
+
+import {
+  marketIntegrityCheckQueryKey,
+  marketIntegrityLatestQueryKey,
+  useIntegrityCheck,
+  useLatestIntegrityCheck,
+  useTriggerIntegrityCheck,
+} from "./sync.query"
+
+interface QueryOptionsForTest {
+  queryKey: readonly unknown[]
+  enabled?: boolean
+  refetchInterval?: (query: {
+    state: { data?: { status?: string } }
+  }) => number | false
+}
+
+interface MutationOptionsForTest {
+  onError?: (error: unknown) => void
+  onSuccess?: () => void
+}
+
+describe("sync query hooks", () => {
+  const queryClient = { invalidateQueries: vi.fn() }
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    queryHooks.useQuery.mockImplementation((options) => options)
+    queryHooks.useQueryClient.mockReturnValue(queryClient)
+    queryHooks.useMutation.mockImplementation((options) => options)
+  })
+
+  it("keeps latest and check keys under marketIntegrity", () => {
+    expect(marketIntegrityLatestQueryKey({ page: 2, pageSize: 20 })).toEqual([
+      "marketIntegrity",
+      "latest",
+      2,
+      20,
+    ])
+    expect(
+      marketIntegrityCheckQueryKey("check-1", { page: 3, pageSize: 50 }),
+    ).toEqual(["marketIntegrity", "check", "check-1", 3, 50])
+  })
+
+  it("polls only while a check response is running", () => {
+    useLatestIntegrityCheck({ page: 1, pageSize: 10 })
+    useIntegrityCheck("check-1", { page: 1, pageSize: 10 })
+    const latest = queryHooks.useQuery.mock.calls[0]?.[0] as QueryOptionsForTest
+    const check = queryHooks.useQuery.mock.calls[1]?.[0] as QueryOptionsForTest
+
+    expect(latest.queryKey).toEqual(["marketIntegrity", "latest", 1, 10])
+    expect(check.queryKey).toEqual([
+      "marketIntegrity",
+      "check",
+      "check-1",
+      1,
+      10,
+    ])
+    expect(check.enabled).toBe(true)
+    if (!check.refetchInterval) throw new Error("polling callback is missing")
+    expect(
+      check.refetchInterval({ state: { data: { status: "running" } } }),
+    ).toBe(1500)
+    expect(
+      check.refetchInterval({ state: { data: { status: "passed" } } }),
+    ).toBe(false)
+  })
+
+  it("disables a check query without an active id", () => {
+    useIntegrityCheck(null)
+    const check = queryHooks.useQuery.mock.calls[0]?.[0] as QueryOptionsForTest
+
+    expect(check.enabled).toBe(false)
+    expect(check.queryKey).toEqual(["marketIntegrity", "check", "none", 1, 10])
+  })
+
+  it("invalidates latest reports after success and on a 409 conflict", () => {
+    useTriggerIntegrityCheck()
+    const mutation = queryHooks.useMutation.mock
+      .calls[0]?.[0] as MutationOptionsForTest
+
+    mutation.onSuccess?.()
+    mutation.onError?.(new ApiError(409, "already running"))
+
+    expect(queryClient.invalidateQueries).toHaveBeenCalledTimes(2)
+    expect(queryClient.invalidateQueries).toHaveBeenNthCalledWith(1, {
+      queryKey: ["marketIntegrity", "latest"],
+    })
+    expect(queryClient.invalidateQueries).toHaveBeenNthCalledWith(2, {
+      queryKey: ["marketIntegrity", "latest"],
+    })
+  })
+})

zhixing-web/src/features/sync/api/sync.query.ts

@@ -0,0 +1,93 @@
+import {
+  useMutation,
+  useQuery,
+  useQueryClient,
+  type QueryClient,
+} from "@tanstack/react-query"
+
+import { ApiError } from "@/shared/api/request-json"
+
+import {
+  getIntegrityCheck,
+  getLatestIntegrityCheck,
+  triggerIntegrityCheck,
+} from "./sync.api"
+import {
+  defaultMarketIntegrityQuery,
+  type IntegrityCheckAccepted,
+  type MarketIntegrityCheck,
+  type MarketIntegrityQuery,
+} from "./sync.types"
+
+export const marketIntegrityQueryKey = ["marketIntegrity"] as const
+export const marketIntegrityLatestQueryPrefix = [
+  "marketIntegrity",
+  "latest",
+] as const
+export const marketIntegrityLatestQueryKey = (
+  query: MarketIntegrityQuery = defaultMarketIntegrityQuery,
+) => [...marketIntegrityLatestQueryPrefix, query.page, query.pageSize] as const
+export const marketIntegrityCheckQueryKey = (
+  checkId: string,
+  query: MarketIntegrityQuery = defaultMarketIntegrityQuery,
+) => ["marketIntegrity", "check", checkId, query.page, query.pageSize] as const
+
+const MARKET_INTEGRITY_POLL_INTERVAL_MS = 1500
+
+export function useLatestIntegrityCheck(
+  query: MarketIntegrityQuery = defaultMarketIntegrityQuery,
+) {
+  return useQuery({
+    queryFn: ({ signal }) => getLatestIntegrityCheck(query, signal),
+    queryKey: marketIntegrityLatestQueryKey(query),
+  })
+}
+
+export function useIntegrityCheck(
+  checkId: string | null,
+  query: MarketIntegrityQuery = defaultMarketIntegrityQuery,
+) {
+  return useQuery({
+    enabled: Boolean(checkId),
+    queryFn: ({ signal }) => getIntegrityCheck(checkId ?? "", query, signal),
+    queryKey: marketIntegrityCheckQueryKey(checkId ?? "none", query),
+    refetchInterval: (currentQuery) =>
+      currentQuery.state.data?.status === "running"
+        ? MARKET_INTEGRITY_POLL_INTERVAL_MS
+        : false,
+  })
+}
+
+export function useTriggerIntegrityCheck() {
+  const queryClient = useQueryClient()
+
+  return useMutation({
+    mutationFn: ({ signal }: { signal?: AbortSignal } = {}) =>
+      triggerIntegrityCheck(signal),
+    onError: (error) => {
+      if (error instanceof ApiError && error.status === 409) {
+        void invalidateLatestIntegrityChecks(queryClient)
+      }
+    },
+    onSuccess: () => {
+      void invalidateLatestIntegrityChecks(queryClient)
+    },
+  })
+}
+
+export function invalidateLatestIntegrityChecks(queryClient: QueryClient) {
+  return queryClient.invalidateQueries({
+    queryKey: marketIntegrityLatestQueryPrefix,
+  })
+}
+
+export const useLatestMarketIntegrityCheck = useLatestIntegrityCheck
+export const useMarketIntegrityCheck = useIntegrityCheck
+export const useTriggerMarketIntegrityCheck = useTriggerIntegrityCheck
+
+export type MarketIntegrityMutation = ReturnType<
+  typeof useTriggerIntegrityCheck
+>
+export type MarketIntegrityQueryResult = ReturnType<typeof useIntegrityCheck>
+export type MarketIntegrityAccepted = IntegrityCheckAccepted
+export type MarketIntegrityData = MarketIntegrityCheck

zhixing-web/src/features/sync/api/sync.types.ts

@@ -0,0 +1,45 @@
+export type MarketIntegrityStatus =
+  "no_data" | "running" | "passed" | "issues_found" | "failed"
+
+export interface MarketIntegrityQuery {
+  page: number
+  pageSize: number
+}
+
+export interface IntegrityCheckAccepted {
+  check_id: string
+  status: "running"
+  window_start: string
+  window_end: string
+}
+
+export interface IntegrityIssue {
+  issue_key: string
+  item_kind: string
+  item_key: string
+  issue_type: string
+  message: string
+}
+
+export interface MarketIntegrityCheck {
+  check_id: string | null
+  status: MarketIntegrityStatus
+  window_start: string | null
+  window_end: string | null
+  target_count: number
+  checked_count: number
+  issue_count: number
+  error_type: string | null
+  error_message: string | null
+  created_at: string | null
+  finished_at: string | null
+  page: number
+  page_size: number
+  issues_total: number
+  issues: IntegrityIssue[]
+}
+
+export const defaultMarketIntegrityQuery: MarketIntegrityQuery = {
+  page: 1,
+  pageSize: 10,
+}

zhixing-web/src/features/sync/pages/sync-page.test.tsx

@@ -0,0 +1,214 @@
+import { fireEvent, render, screen, waitFor } from "@testing-library/react"
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+import { ApiError } from "@/shared/api/request-json"
+
+import { SyncPage } from "./sync-page"
+import type {
+  IntegrityIssue,
+  MarketIntegrityCheck,
+  MarketIntegrityStatus,
+} from "../api/sync.types"
+
+const syncHooks = vi.hoisted(() => ({
+  useIntegrityCheck: vi.fn(),
+  useLatestIntegrityCheck: vi.fn(),
+  useTriggerIntegrityCheck: vi.fn(),
+}))
+
+vi.mock("../api/sync.query", () => syncHooks)
+
+const issue: IntegrityIssue = {
+  issue_key: "issue-1",
+  item_kind: "bar",
+  item_key: "000001.SZ:2026-08-08",
+  issue_type: "missing_csv_row",
+  message: "仅报告 PostgreSQL 与 CSV 的差异，不会自动修复。",
+}
+
+function buildReport(
+  status: MarketIntegrityStatus,
+  overrides: Partial<MarketIntegrityCheck> = {},
+): MarketIntegrityCheck {
+  const hasRun = status !== "no_data"
+  return {
+    check_id: hasRun ? "check-1" : null,
+    status,
+    window_start: hasRun ? "2026-08-01" : null,
+    window_end: hasRun ? "2026-08-08" : null,
+    target_count: 10,
+    checked_count: 10,
+    issue_count: status === "issues_found" ? 1 : 0,
+    error_type: null,
+    error_message: null,
+    created_at: "2026-08-08T09:00:00+08:00",
+    finished_at: "2026-08-08T09:02:00+08:00",
+    page: 1,
+    page_size: 10,
+    issues_total: status === "issues_found" ? 1 : 0,
+    issues: status === "issues_found" ? [issue] : [],
+    ...overrides,
+  }
+}
+
+function configureHooks(
+  latestData: MarketIntegrityCheck | undefined,
+  options: {
+    checkData?: MarketIntegrityCheck
+    latestError?: unknown
+    triggerError?: unknown
+  } = {},
+) {
+  const refetchLatest = vi.fn()
+  const refetchCheck = vi.fn()
+  const mutate = vi.fn()
+  const reset = vi.fn()
+
+  syncHooks.useLatestIntegrityCheck.mockReturnValue({
+    data: latestData,
+    error: options.latestError,
+    isError: Boolean(options.latestError),
+    isPending: false,
+    refetch: refetchLatest,
+  })
+  syncHooks.useIntegrityCheck.mockReturnValue({
+    data: options.checkData,
+    error: undefined,
+    isError: false,
+    isPending: false,
+    refetch: refetchCheck,
+  })
+  syncHooks.useTriggerIntegrityCheck.mockReturnValue({
+    data: undefined,
+    error: options.triggerError,
+    isError: Boolean(options.triggerError),
+    isPending: false,
+    mutate,
+    reset,
+  })
+
+  return { mutate, refetchCheck, refetchLatest, reset }
+}
+
+describe("SyncPage", () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    configureHooks(buildReport("no_data"))
+  })
+
+  it("explains the no-data state and starts a check once", () => {
+    const { mutate } = configureHooks(buildReport("no_data"))
+
+    render(<SyncPage />)
+
+    expect(screen.getByText("暂无检查记录")).toBeInTheDocument()
+    expect(screen.getAllByText(/只报告，不自动修复/).length).toBeGreaterThan(0)
+
+    fireEvent.click(screen.getByRole("button", { name: "开始完整性检查" }))
+
+    expect(mutate).toHaveBeenCalledOnce()
+  })
+
+  it("shows running progress and disables duplicate triggers", () => {
+    configureHooks(buildReport("running", { checked_count: 4 }))
+
+    render(<SyncPage />)
+
+    expect(screen.getByText("完整性检查进行中")).toBeInTheDocument()
+    expect(screen.getByText("4 / 10")).toBeInTheDocument()
+    expect(screen.getByRole("button", { name: "检查进行中" })).toBeDisabled()
+  })
+
+  it("recovers a running check id from the latest report after refresh", async () => {
+    configureHooks(buildReport("running"), {
+      checkData: buildReport("running", { checked_count: 3 }),
+    })
+
+    render(<SyncPage />)
+
+    await waitFor(() => {
+      expect(syncHooks.useIntegrityCheck).toHaveBeenCalledWith("check-1", {
+        page: 1,
+        pageSize: 10,
+      })
+    })
+  })
+
+  it("refreshes latest once after a running check reaches a terminal state", async () => {
+    const { refetchLatest } = configureHooks(buildReport("running"), {
+      checkData: buildReport("passed"),
+    })
+
+    render(<SyncPage />)
+
+    await waitFor(() => {
+      expect(refetchLatest).toHaveBeenCalledOnce()
+    })
+  })
+
+  it("renders a passed report without an issue table", () => {
+    configureHooks(buildReport("passed"))
+
+    render(<SyncPage />)
+
+    expect(screen.getByText("检查通过")).toBeInTheDocument()
+    expect(screen.getAllByText(/未发现 PostgreSQL\/CSV 不一致/)).toHaveLength(2)
+    expect(screen.queryByRole("table")).not.toBeInTheDocument()
+  })
+
+  it("renders paginated issue details and the safe-report notice", () => {
+    configureHooks(buildReport("issues_found"))
+
+    render(<SyncPage />)
+
+    expect(
+      screen.getByRole("table", { name: "完整性检查问题报告" }),
+    ).toBeInTheDocument()
+    expect(screen.getByText("bar")).toBeInTheDocument()
+    expect(screen.getByText("000001.SZ:2026-08-08")).toBeInTheDocument()
+    expect(screen.getByText("missing_csv_row")).toBeInTheDocument()
+    expect(screen.getByText(/只展示对象和差异说明/)).toBeInTheDocument()
+    expect(
+      screen.getByRole("contentinfo", { name: "表格分页" }),
+    ).toBeInTheDocument()
+  })
+
+  it("shows a failed report and offers a retry entry", () => {
+    const { mutate } = configureHooks(
+      buildReport("failed", {
+        error_type: "check_error",
+        error_message: "存储暂时不可用",
+      }),
+    )
+
+    render(<SyncPage />)
+
+    expect(screen.getByText("检查未完成")).toBeInTheDocument()
+    expect(screen.getByText(/不能据此判断市场数据已经损坏/)).toBeInTheDocument()
+    fireEvent.click(screen.getByRole("button", { name: "重新发起检查" }))
+    expect(mutate).toHaveBeenCalledOnce()
+  })
+
+  it("makes 503 and network failures visible with a retry button", () => {
+    const { refetchLatest } = configureHooks(undefined, {
+      latestError: new ApiError(503, "unavailable"),
+    })
+
+    render(<SyncPage />)
+
+    expect(screen.getByText("完整性检查结果暂时不可用")).toBeInTheDocument()
+    fireEvent.click(screen.getByRole("button", { name: "重试" }))
+    expect(refetchLatest).toHaveBeenCalledOnce()
+  })
+
+  it("explains a 409 and lets the page take over the running report", () => {
+    configureHooks(buildReport("running"), {
+      triggerError: new ApiError(409, "conflict"),
+    })
+
+    render(<SyncPage />)
+
+    expect(screen.getByText(/已刷新并接管该检查/)).toBeInTheDocument()
+    expect(screen.getByText("完整性检查进行中")).toBeInTheDocument()
+  })
+})

zhixing-web/src/features/sync/pages/sync-page.tsx

@@ -0,0 +1,665 @@
+import {
+  AlertTriangle,
+  CheckCircle2,
+  ClipboardCheck,
+  Database,
+  RefreshCw,
+  ShieldCheck,
+} from "lucide-react"
+import { useEffect, useRef, useState } from "react"
+
+import { PageLayout } from "@/app/layout/page-layout"
+import { ApiError } from "@/shared/api/request-json"
+import { Badge } from "@/shared/ui/badge"
+import { Button } from "@/shared/ui/button"
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/shared/ui/card"
+import { Pagination } from "@/shared/ui/pagination"
+import { Progress, ProgressLabel, ProgressValue } from "@/shared/ui/progress"
+
+import {
+  useIntegrityCheck,
+  useLatestIntegrityCheck,
+  useTriggerIntegrityCheck,
+} from "../api/sync.query"
+import {
+  defaultMarketIntegrityQuery,
+  type IntegrityCheckAccepted,
+  type MarketIntegrityCheck,
+} from "../api/sync.types"
+
+export function SyncPage() {
+  const [triggeredCheckId, setTriggeredCheckId] = useState<string | null>(null)
+  const [page, setPage] = useState(defaultMarketIntegrityQuery.page)
+  const [pageSize, setPageSize] = useState(defaultMarketIntegrityQuery.pageSize)
+  const query = { page, pageSize }
+  const latest = useLatestIntegrityCheck(query)
+  const latestRunningCheckId =
+    latest.data?.status === "running" ? latest.data.check_id : null
+  const activeCheckId = triggeredCheckId ?? latestRunningCheckId
+  const check = useIntegrityCheck(activeCheckId, query)
+  const trigger = useTriggerIntegrityCheck()
+  const { refetch: refetchLatest } = latest
+  const terminalRefreshId = useRef<string | null>(null)
+
+  useEffect(() => {
+    if (!activeCheckId || !check.data || check.data.status === "running") {
+      if (!activeCheckId) terminalRefreshId.current = null
+      return
+    }
+    if (terminalRefreshId.current === activeCheckId) return
+
+    terminalRefreshId.current = activeCheckId
+    void refetchLatest()
+  }, [activeCheckId, check.data, refetchLatest])
+
+  const acceptedReport = trigger.data
+    ? acceptedCheckAsReport(trigger.data)
+    : undefined
+  const latestMatchesActive =
+    !activeCheckId || latest.data?.check_id === activeCheckId
+  const report =
+    check.data ??
+    (activeCheckId && latestMatchesActive ? latest.data : undefined) ??
+    (trigger.data ? acceptedReport : latest.data)
+
+  function startCheck() {
+    setPage(1)
+    trigger.reset()
+    trigger.mutate(
+      {},
+      {
+        onError: (error) => {
+          if (getErrorStatus(error) === 409) setTriggeredCheckId(null)
+        },
+        onSuccess: (accepted) => setTriggeredCheckId(accepted.check_id),
+      },
+    )
+  }
+
+  function retryActiveCheck() {
+    void check.refetch()
+  }
+
+  function retryLatest() {
+    void latest.refetch()
+  }
+
+  const triggerStatus = getErrorStatus(trigger.error)
+  const triggerError =
+    trigger.isError && triggerStatus !== 409 ? trigger.error : null
+  const queryPending = activeCheckId ? check.isPending : latest.isPending
+  const queryError = activeCheckId ? check.error : latest.error
+  const queryHasData = Boolean(report)
+
+  return (
+    <PageLayout>
+      <div className="mx-auto w-full max-w-6xl space-y-4">
+        <header className="space-y-1">
+          <p className="text-xs font-medium tracking-[0.08em] text-muted-foreground uppercase">
+            只读数据校验
+          </p>
+          <h1 className="text-2xl font-semibold tracking-tight">
+            市场数据完整性检查
+          </h1>
+          <p className="max-w-3xl text-sm text-muted-foreground">
+            检查 PostgreSQL 与 CSV 快照中的市场数据是否一致，帮助定位数据问题。
+          </p>
+        </header>
+
+        <ReadOnlyNotice />
+
+        {triggerStatus === 409 ? <ConflictNotice /> : null}
+
+        {triggerError ? (
+          <RequestError
+            description={getTriggerErrorDescription(triggerError)}
+            onRetry={startCheck}
+            title="完整性检查暂时无法发起"
+          />
+        ) : null}
+
+        {!queryHasData && queryPending ? <LoadingState /> : null}
+
+        {!queryPending && queryError ? (
+          <RequestError
+            description={getQueryErrorDescription(queryError)}
+            onRetry={activeCheckId ? retryActiveCheck : retryLatest}
+            title="完整性检查结果暂时不可用"
+          />
+        ) : null}
+
+        {report?.status === "no_data" ? (
+          <NoDataState isPending={trigger.isPending} onStart={startCheck} />
+        ) : null}
+
+        {report?.status === "running" ? <RunningState report={report} /> : null}
+
+        {report?.status === "passed" ? (
+          <PassedState
+            isPending={trigger.isPending}
+            onStart={startCheck}
+            report={report}
+          />
+        ) : null}
+
+        {report?.status === "issues_found" ? (
+          <IssuesFoundState
+            onPageChange={setPage}
+            onPageSizeChange={(nextPageSize) => {
+              setPage(1)
+              setPageSize(nextPageSize)
+            }}
+            report={report}
+            selectedPage={page}
+            selectedPageSize={pageSize}
+            isPending={trigger.isPending}
+            onStart={startCheck}
+          />
+        ) : null}
+
+        {report?.status === "failed" ? (
+          <FailedState
+            isPending={trigger.isPending}
+            onStart={startCheck}
+            report={report}
+          />
+        ) : null}
+      </div>
+    </PageLayout>
+  )
+}
+
+function ReadOnlyNotice() {
+  return (
+    <Card className="border-primary/20 bg-primary/5">
+      <CardContent className="flex gap-3 p-4">
+        <ShieldCheck
+          className="mt-0.5 size-5 shrink-0 text-primary"
+          aria-hidden="true"
+        />
+        <div className="space-y-1">
+          <p className="font-medium">只读检查，安全报告</p>
+          <p className="text-sm text-muted-foreground">
+            本检查只比较 PostgreSQL 与 CSV，不访问
+            Tushare，不修改市场事实。发现差异时只报告，不自动修复。
+          </p>
+        </div>
+      </CardContent>
+    </Card>
+  )
+}
+
+function ConflictNotice() {
+  return (
+    <div
+      role="status"
+      className="flex items-start gap-2 rounded-md border border-warning/40 bg-warning/10 p-3 text-sm text-foreground"
+    >
+      <RefreshCw
+        className="mt-0.5 size-4 shrink-0 text-warning"
+        aria-hidden="true"
+      />
+      <p>已有完整性检查正在运行，页面已刷新并接管该检查的进度。</p>
+    </div>
+  )
+}
+
+function LoadingState() {
+  return (
+    <Card aria-label="正在加载完整性检查" role="status">
+      <CardHeader className="gap-3">
+        <div className="h-6 w-52 animate-pulse rounded-md bg-muted" />
+        <div className="h-4 w-80 max-w-full animate-pulse rounded-md bg-muted" />
+      </CardHeader>
+      <CardContent>
+        <div className="h-20 animate-pulse rounded-md bg-muted" />
+      </CardContent>
+    </Card>
+  )
+}
+
+function NoDataState({
+  isPending,
+  onStart,
+}: {
+  isPending: boolean
+  onStart: () => void
+}) {
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2 text-xl">
+          <Database className="size-5 text-primary" aria-hidden="true" />
+          暂无检查记录
+        </CardTitle>
+        <CardDescription>
+          当前没有可查看的完整性检查。发起后，系统会比较最近完成同步窗口中的
+          PostgreSQL 与 CSV 数据。
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <Button disabled={isPending} onClick={onStart}>
+          <ClipboardCheck aria-hidden="true" />
+          {isPending ? "正在发起检查…" : "开始完整性检查"}
+        </Button>
+        <p className="text-xs text-muted-foreground">
+          检查只读数据并生成报告，不会访问 Tushare，也不会自动修复。
+        </p>
+      </CardContent>
+    </Card>
+  )
+}
+
+function RunningState({ report }: { report: MarketIntegrityCheck }) {
+  const percentage = progressPercentage(
+    report.checked_count,
+    report.target_count,
+  )
+  return (
+    <Card aria-live="polite">
+      <CardHeader className="gap-3">
+        <div className="flex flex-wrap items-start justify-between gap-3">
+          <div>
+            <CardTitle className="flex items-center gap-2 text-xl">
+              <ClipboardCheck
+                className="size-5 text-primary"
+                aria-hidden="true"
+              />
+              完整性检查进行中
+            </CardTitle>
+            <CardDescription>
+              检查完成后会自动停止刷新；运行期间不会修改 PostgreSQL 或 CSV
+              数据。
+            </CardDescription>
+          </div>
+          <Badge variant="outline">运行中</Badge>
+        </div>
+      </CardHeader>
+      <CardContent className="space-y-5">
+        <Progress aria-label="完整性检查进度" max={100} value={percentage}>
+          <ProgressLabel>检查进度</ProgressLabel>
+          <ProgressValue>
+            {() => `${report.checked_count}/${report.target_count}`}
+          </ProgressValue>
+        </Progress>
+        <div className="grid gap-3 sm:grid-cols-3">
+          <Metric
+            label="已检查对象"
+            value={`${report.checked_count} / ${report.target_count}`}
+          />
+          <Metric label="当前问题数" value={String(report.issue_count)} />
+          <Metric label="检查窗口" value={formatWindow(report)} />
+        </div>
+        <div className="flex flex-wrap items-center justify-between gap-3 border-t border-border/60 pt-4">
+          <Timestamp label="开始时间" value={report.created_at} />
+          <Button disabled variant="outline">
+            检查进行中
+          </Button>
+        </div>
+      </CardContent>
+    </Card>
+  )
+}
+
+function PassedState({
+  isPending,
+  onStart,
+  report,
+}: {
+  isPending: boolean
+  onStart: () => void
+  report: MarketIntegrityCheck
+}) {
+  return (
+    <Card>
+      <CardHeader className="gap-3">
+        <div className="flex flex-wrap items-start justify-between gap-3">
+          <div>
+            <CardTitle className="flex items-center gap-2 text-xl">
+              <CheckCircle2
+                className="size-5 text-success"
+                aria-hidden="true"
+              />
+              检查通过
+            </CardTitle>
+            <CardDescription>
+              未发现 PostgreSQL/CSV 不一致，本次检查只报告结果，没有修改数据。
+            </CardDescription>
+          </div>
+          <Badge className="border-transparent bg-success text-success-foreground">
+            已通过
+          </Badge>
+        </div>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        <div className="rounded-md border border-success/30 bg-success/10 p-4 text-sm">
+          未发现 PostgreSQL/CSV 不一致。
+        </div>
+        <div className="grid gap-3 sm:grid-cols-3">
+          <Metric
+            label="已检查对象"
+            value={`${report.checked_count} / ${report.target_count}`}
+          />
+          <Metric label="问题数" value={String(report.issue_count)} />
+          <Metric label="检查窗口" value={formatWindow(report)} />
+        </div>
+        <div className="flex flex-wrap items-end justify-between gap-3 border-t border-border/60 pt-4">
+          <div className="flex flex-wrap gap-x-5 gap-y-2">
+            <Timestamp label="开始时间" value={report.created_at} />
+            <Timestamp label="完成时间" value={report.finished_at} />
+          </div>
+          <Button disabled={isPending} onClick={onStart} variant="outline">
+            <RefreshCw aria-hidden="true" />
+            {isPending ? "正在发起…" : "再次检查"}
+          </Button>
+        </div>
+      </CardContent>
+    </Card>
+  )
+}
+
+function IssuesFoundState({
+  isPending,
+  onPageChange,
+  onPageSizeChange,
+  onStart,
+  report,
+  selectedPage,
+  selectedPageSize,
+}: {
+  isPending: boolean
+  onPageChange: (page: number) => void
+  onPageSizeChange: (pageSize: number) => void
+  onStart: () => void
+  report: MarketIntegrityCheck
+  selectedPage: number
+  selectedPageSize: number
+}) {
+  return (
+    <Card>
+      <CardHeader className="gap-3">
+        <div className="flex flex-wrap items-start justify-between gap-3">
+          <div>
+            <CardTitle className="flex items-center gap-2 text-xl">
+              <AlertTriangle
+                className="size-5 text-warning"
+                aria-hidden="true"
+              />
+              发现数据差异
+            </CardTitle>
+            <CardDescription>
+              检查完成并发现 {report.issue_count}{" "}
+              个问题。以下内容仅供定位，系统不会自动修复。
+            </CardDescription>
+          </div>
+          <Badge className="border-transparent bg-warning text-warning-foreground">
+            {report.issue_count} 个问题
+          </Badge>
+        </div>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        <div className="grid gap-3 sm:grid-cols-3">
+          <Metric
+            label="已检查对象"
+            value={`${report.checked_count} / ${report.target_count}`}
+          />
+          <Metric label="问题数" value={String(report.issue_count)} />
+          <Metric label="检查窗口" value={formatWindow(report)} />
+        </div>
+        <div className="rounded-md border border-warning/40 bg-warning/10 p-4 text-sm">
+          安全说明：问题报告只展示对象和差异说明，不会执行修复或重新同步。
+        </div>
+        <IssueTable report={report} />
+        <Pagination
+          onPageChange={onPageChange}
+          onPageSizeChange={onPageSizeChange}
+          page={selectedPage}
+          pageSize={selectedPageSize}
+          pageSizeOptions={[10, 20, 50]}
+          total={report.issues_total}
+        />
+        <div className="flex flex-wrap items-end justify-between gap-3 border-t border-border/60 pt-4">
+          <div className="flex flex-wrap gap-x-5 gap-y-2">
+            <Timestamp label="开始时间" value={report.created_at} />
+            <Timestamp label="完成时间" value={report.finished_at} />
+          </div>
+          <Button disabled={isPending} onClick={onStart} variant="outline">
+            <RefreshCw aria-hidden="true" />
+            {isPending ? "正在发起…" : "再次检查"}
+          </Button>
+        </div>
+      </CardContent>
+    </Card>
+  )
+}
+
+function IssueTable({ report }: { report: MarketIntegrityCheck }) {
+  if (report.issues.length === 0) {
+    return (
+      <div className="rounded-md border p-4 text-sm text-muted-foreground">
+        当前页没有问题记录。
+      </div>
+    )
+  }
+
+  return (
+    <div className="overflow-x-auto rounded-md border">
+      <table className="w-full min-w-[680px] text-left text-sm">
+        <caption className="sr-only">完整性检查问题报告</caption>
+        <thead className="bg-muted/50 text-xs text-muted-foreground">
+          <tr>
+            <th className="px-3 py-2.5 font-medium" scope="col">
+              对象类型
+            </th>
+            <th className="px-3 py-2.5 font-medium" scope="col">
+              对象 key
+            </th>
+            <th className="px-3 py-2.5 font-medium" scope="col">
+              问题类型
+            </th>
+            <th className="px-3 py-2.5 font-medium" scope="col">
+              安全说明
+            </th>
+          </tr>
+        </thead>
+        <tbody className="divide-y divide-border/60">
+          {report.issues.map((issue) => (
+            <tr key={issue.issue_key} className="align-top">
+              <td className="px-3 py-3 font-medium">{issue.item_kind}</td>
+              <td className="break-all px-3 py-3 font-mono text-xs">
+                {issue.item_key}
+              </td>
+              <td className="px-3 py-3">{issue.issue_type}</td>
+              <td className="max-w-md px-3 py-3 text-muted-foreground">
+                {issue.message}
+              </td>
+            </tr>
+          ))}
+        </tbody>
+      </table>
+    </div>
+  )
+}
+
+function FailedState({
+  isPending,
+  onStart,
+  report,
+}: {
+  isPending: boolean
+  onStart: () => void
+  report: MarketIntegrityCheck
+}) {
+  return (
+    <Card>
+      <CardHeader className="gap-3">
+        <div className="flex flex-wrap items-start justify-between gap-3">
+          <div>
+            <CardTitle className="flex items-center gap-2 text-xl">
+              <AlertTriangle
+                className="size-5 text-destructive"
+                aria-hidden="true"
+              />
+              检查未完成
+            </CardTitle>
+            <CardDescription>
+              本次检查遇到安全错误，不能据此判断市场数据已经损坏。
+            </CardDescription>
+          </div>
+          <Badge variant="destructive">失败</Badge>
+        </div>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        <div
+          role="alert"
+          className="rounded-md border border-destructive/30 bg-destructive/10 p-4 text-sm"
+        >
+          <p className="font-medium">未判断市场数据状态</p>
+          <p className="mt-1 text-muted-foreground">
+            {report.error_type
+              ? `错误类型：${report.error_type}`
+              : "检查服务暂时无法完成比较。"}
+          </p>
+          {report.error_message ? (
+            <p className="mt-1 text-muted-foreground">{report.error_message}</p>
+          ) : null}
+        </div>
+        <div className="grid gap-3 sm:grid-cols-3">
+          <Metric
+            label="已检查对象"
+            value={`${report.checked_count} / ${report.target_count}`}
+          />
+          <Metric label="问题数" value={String(report.issue_count)} />
+          <Metric label="检查窗口" value={formatWindow(report)} />
+        </div>
+        <div className="flex flex-wrap items-end justify-between gap-3 border-t border-border/60 pt-4">
+          <div className="flex flex-wrap gap-x-5 gap-y-2">
+            <Timestamp label="开始时间" value={report.created_at} />
+            <Timestamp label="结束时间" value={report.finished_at} />
+          </div>
+          <Button disabled={isPending} onClick={onStart}>
+            <RefreshCw aria-hidden="true" />
+            {isPending ? "正在重新发起…" : "重新发起检查"}
+          </Button>
+        </div>
+      </CardContent>
+    </Card>
+  )
+}
+
+function RequestError({
+  description,
+  onRetry,
+  title,
+}: {
+  description: string
+  onRetry: () => void
+  title: string
+}) {
+  return (
+    <Card role="alert">
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2 text-xl">
+          <AlertTriangle
+            className="size-5 text-destructive"
+            aria-hidden="true"
+          />
+          {title}
+        </CardTitle>
+        <CardDescription>{description}</CardDescription>
+      </CardHeader>
+      <CardContent>
+        <Button onClick={onRetry} variant="outline">
+          <RefreshCw aria-hidden="true" />
+          重试
+        </Button>
+      </CardContent>
+    </Card>
+  )
+}
+
+function Metric({ label, value }: { label: string; value: string }) {
+  return (
+    <div className="rounded-md border bg-muted/30 p-3">
+      <p className="text-xs text-muted-foreground">{label}</p>
+      <p className="mt-1 break-words font-medium tabular-nums">{value}</p>
+    </div>
+  )
+}
+
+function Timestamp({ label, value }: { label: string; value: string | null }) {
+  return (
+    <p className="text-xs text-muted-foreground">
+      {label}：
+      <time className="text-foreground" dateTime={value ?? undefined}>
+        {value ?? "—"}
+      </time>
+    </p>
+  )
+}
+
+function formatWindow(report: MarketIntegrityCheck) {
+  if (!report.window_start || !report.window_end) return "—"
+  return `${report.window_start} 至 ${report.window_end}`
+}
+
+function progressPercentage(checked: number, target: number) {
+  if (target <= 0) return 0
+  return Math.min(100, Math.max(0, (checked / target) * 100))
+}
+
+function acceptedCheckAsReport(
+  accepted: IntegrityCheckAccepted,
+): MarketIntegrityCheck {
+  return {
+    check_id: accepted.check_id,
+    status: "running",
+    window_start: accepted.window_start,
+    window_end: accepted.window_end,
+    target_count: 0,
+    checked_count: 0,
+    issue_count: 0,
+    error_type: null,
+    error_message: null,
+    created_at: null,
+    finished_at: null,
+    page: 1,
+    page_size: defaultMarketIntegrityQuery.pageSize,
+    issues_total: 0,
+    issues: [],
+  }
+}
+
+function getErrorStatus(error: unknown) {
+  if (error instanceof ApiError) return error.status
+  if (typeof error === "object" && error !== null && "status" in error) {
+    const status = error.status
+    return typeof status === "number" ? status : null
+  }
+  return null
+}
+
+function getQueryErrorDescription(error: unknown) {
+  const status = getErrorStatus(error)
+  if (status === 503) {
+    return "检查结果存储暂时不可用，未将这次请求解释为市场数据损坏。"
+  }
+  return "检查结果暂时无法获取，可能是网络或服务异常。请稍后重试。"
+}
+
+function getTriggerErrorDescription(error: unknown) {
+  const status = getErrorStatus(error)
+  if (status === 422) {
+    return "当前没有可供比较的已完成市场数据窗口，请先完成一次市场数据同步。"
+  }
+  if (status === 503) {
+    return "检查服务暂时不可用，未发起新的检查。请稍后重试。"
+  }
+  return "检查请求可能没有到达服务，请确认网络后重试。"
+}

zhixing-web/src/routes/route-tree.tsx

@@ -8,6 +8,7 @@ import {
   type SelectionCategoryFilter,
 } from "@/features/selection/api/selection.types"
 import { SelectionResultsPage } from "@/features/selection/pages/selection-results-page"
+import { SyncPage } from "@/features/sync/pages/sync-page"
 
 const rootRoute = createRootRoute({
   component: () => <Outlet />,
@@ -48,6 +49,12 @@ const selectionRoute = createRoute({
   component: SelectionResultsPage,
 })
 
+const syncRoute = createRoute({
+  getParentRoute: () => workspaceRoute,
+  path: "/sync",
+  component: SyncPage,
+})
+
 const componentsRoute = createRoute({
   getParentRoute: () => workspaceRoute,
   path: "/components",
@@ -55,5 +62,10 @@ const componentsRoute = createRoute({
 })
 
 export const routeTree = rootRoute.addChildren([
-  workspaceRoute.addChildren([indexRoute, selectionRoute, componentsRoute]),
+  workspaceRoute.addChildren([
+    indexRoute,
+    selectionRoute,
+    syncRoute,
+    componentsRoute,
+  ]),
 ])