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backend/api/routes/system.py

@@ -16,6 +16,9 @@ router = APIRouter(prefix="/api/system")
 
 LOG_GROUPS = ("error", "warning", "info")
 
+# 避免 Redis 异常刷屏（前端可能自动刷新）
+_last_logs_redis_err_ts: float = 0.0
+
 
 def _logs_prefix() -> str:
     return (os.getenv("REDIS_LOG_LIST_PREFIX", "ats:logs").strip() or "ats:logs")
@@ -249,7 +252,15 @@ def _get_redis_client_for_logs():
         client = redis.from_url(redis_url, **kwargs)
         client.ping()
         return client
-    except Exception:
+    except Exception as e:
+        # 把错误尽量打到 api.log（你现在看的文件）
+        global _last_logs_redis_err_ts
+        import time as _t
+
+        now = _t.time()
+        if now - _last_logs_redis_err_ts > 30:
+            _last_logs_redis_err_ts = now
+            logger.warning(f"日志模块 Redis 连接失败。REDIS_URL={os.getenv('REDIS_URL', '')} err={e}")
         return None
 
 
@@ -370,6 +381,7 @@ async def logs_overview(x_admin_token: Optional[str] = Header(default=None, alia
     if client is None:
         raise HTTPException(status_code=503, detail="Redis 不可用，无法读取日志概览")
 
+    try:
         cfg = _read_logs_config(client)
 
         day = _beijing_yyyymmdd()
@@ -404,7 +416,16 @@ async def logs_overview(x_admin_token: Optional[str] = Header(default=None, alia
                 "llen": llen,
                 "added_today": added_today,
             },
+            "meta": {
+                "redis_url": os.getenv("REDIS_URL", ""),
+                "keys": {g: _logs_key_for_group(g) for g in LOG_GROUPS},
+            },
         }
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"logs_overview 失败: {e}", exc_info=True)
+        raise HTTPException(status_code=500, detail=f"logs_overview failed: {e}")
 
 
 @router.put("/logs/config")