bugfix:修复sqlite部分场景下锁竞争问题；新增插件恶意触发配置文件 (#2144)

* bugfix:修复sqlite部分场景下锁竞争问题；新增插件恶意触发配置文件

* 文件没同步完

zhenxun/services/db_context/utils.py

@@ -1,7 +1,9 @@
 import asyncio
+import contextlib
 import time
 
 from zhenxun.services.log import logger
+from zhenxun.services.message_load import signal_db_unhealthy
 
 from .config import (
     DB_TIMEOUT_SECONDS,
@@ -9,6 +11,40 @@ from .config import (
     SLOW_QUERY_THRESHOLD,
 )
 
+_SQLITE_STALL_UNTIL = 0.0
+_SQLITE_STALL_REASON = ""
+_DB_UNHEALTHY_TIMEOUT_SECONDS = 30.0
+_SQLITE_STALL_TIMEOUT_SECONDS = 60.0
+
+
+def _is_sqlite_connection() -> bool:
+    with contextlib.suppress(Exception):
+        from tortoise import Tortoise
+
+        connection = Tortoise.get_connection("default")
+        capabilities = getattr(connection, "capabilities", None)
+        dialect = str(getattr(capabilities, "dialect", "") or "").lower()
+        return dialect.startswith("sqlite")
+    return False
+
+
+def _mark_sqlite_stall(reason: str, duration: float) -> None:
+    global _SQLITE_STALL_REASON, _SQLITE_STALL_UNTIL
+    until = time.monotonic() + max(duration, 0.0)
+    if until > _SQLITE_STALL_UNTIL:
+        _SQLITE_STALL_UNTIL = until
+        _SQLITE_STALL_REASON = str(reason or "")[:200]
+
+
+def is_sqlite_stall_suspected() -> bool:
+    return time.monotonic() < _SQLITE_STALL_UNTIL
+
+
+def sqlite_stall_reason() -> str:
+    if not is_sqlite_stall_suspected():
+        return ""
+    return _SQLITE_STALL_REASON
+
 
 async def with_db_timeout(
     coro,
@@ -19,13 +55,23 @@ async def with_db_timeout(
     """带超时控制的数据库操作"""
     start_time = time.time()
     try:
-        logger.debug(f"开始执行数据库操作: {operation} 来源: {source}")
         result = await asyncio.wait_for(coro, timeout=timeout)
         elapsed = time.time() - start_time
         if elapsed > SLOW_QUERY_THRESHOLD and operation:
             logger.warning(f"慢查询: {operation} 耗时 {elapsed:.3f}s", LOG_COMMAND)
         return result
     except asyncio.TimeoutError:
+        timeout_reason = f"{operation or 'database_operation'} from {source or '-'}"
+        unhealthy_duration = _DB_UNHEALTHY_TIMEOUT_SECONDS
+        if _is_sqlite_connection():
+            unhealthy_duration = _SQLITE_STALL_TIMEOUT_SECONDS
+            _mark_sqlite_stall(timeout_reason, unhealthy_duration)
+            logger.warning(
+                "SQLite 数据库操作超时，疑似 aiosqlite worker/连接被锁等待卡住；"
+                "已暂停低优先级数据库任务",
+                LOG_COMMAND,
+            )
+        signal_db_unhealthy(unhealthy_duration, reason=timeout_reason)
         if operation:
             logger.error(
                 f"数据库操作超时: {operation} (>{timeout}s) 来源: {source}",