diff --git a/src/ai/backend/manager/api/manager.py b/src/ai/backend/manager/api/manager.py
index fd692b8824..32deec1bde 100644
--- a/src/ai/backend/manager/api/manager.py
+++ b/src/ai/backend/manager/api/manager.py
@@ -111,15 +111,13 @@ async def detect_status_update(root_ctx: RootContext) -> None:
 async def report_status_bgtask(root_ctx: RootContext) -> None:
     interval = cast(Optional[float], root_ctx.local_config["manager"]["status-update-interval"])
     if interval is None:
-        # Do not report if interval is not set
+        # Do not run bgtask if interval is not set
         return
     try:
         while True:
             await asyncio.sleep(interval)
             try:
                 await report_manager_status(root_ctx)
-            except asyncio.CancelledError:
-                raise
             except Exception as e:
                 log.exception(f"Failed to report manager health status (e:{str(e)})")
     except asyncio.CancelledError:
diff --git a/src/ai/backend/manager/config.py b/src/ai/backend/manager/config.py
index f6bfe3644b..d580ad1ede 100644
--- a/src/ai/backend/manager/config.py
+++ b/src/ai/backend/manager/config.py
@@ -290,8 +290,8 @@
             ],
             t.Key("aiomonitor-webui-port", default=49100): t.ToInt[1:65535],
             t.Key("use-experimental-redis-event-dispatcher", default=False): t.ToBool,
-            t.Key("status-update-interval", default=None): t.Null | t.ToFloat[0:],
-            t.Key("status-lifetime", default=None): t.Null | t.ToFloat[0:],
+            t.Key("status-update-interval", default=None): t.Null | t.ToFloat[0:],  # second
+            t.Key("status-lifetime", default=None): t.Null | t.ToInt[0:],  # second
             t.Key("public-metrics-port", default=None): t.Null | t.ToInt[1:65535],
         }).allow_extra("*"),
         t.Key("docker-registry"): t.Dict({  # deprecated in v20.09
diff --git a/src/ai/backend/manager/models/health.py b/src/ai/backend/manager/models/health.py
index 364c07e43e..71662e3656 100644
--- a/src/ai/backend/manager/models/health.py
+++ b/src/ai/backend/manager/models/health.py
@@ -142,7 +142,7 @@ async def _get_connnection_info(root_ctx: RootContext) -> ConnectionInfoOfProces
 
 
 async def report_manager_status(root_ctx: RootContext) -> None:
-    lifetime = cast(Optional[float], root_ctx.local_config["manager"]["status-lifetime"])
+    lifetime = cast(Optional[int], root_ctx.local_config["manager"]["status-lifetime"])
     cxn_info = await _get_connnection_info(root_ctx)
     _data = msgpack.packb(cxn_info.model_dump(mode="json"))