TangSiyang2001 commented on code in PR #57591:
URL: https://github.com/apache/doris/pull/57591#discussion_r2513911783


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fe/fe-core/src/main/java/org/apache/doris/task/AgentTaskCleanupDaemon.java:
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@@ -0,0 +1,83 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.apache.doris.task;
+
+import org.apache.doris.catalog.Env;
+import org.apache.doris.common.Config;
+import org.apache.doris.common.Status;
+import org.apache.doris.common.util.MasterDaemon;
+import org.apache.doris.system.SystemInfoService;
+import org.apache.doris.thrift.TStatusCode;
+
+import com.google.common.collect.Maps;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.util.Map;
+
+public class AgentTaskCleanupDaemon extends MasterDaemon {
+    private static final Logger LOG = 
LogManager.getLogger(AgentTaskCleanupDaemon.class);
+
+    public static final Integer MAX_FAILURE_TIMES = 3;

Review Comment:
   > 3 is too small, heartbeat interval is 5 seconds sometimes.
   
   But Config.agent_task_health_check_intervals_ms is actually 5minutes by 
default, >=MAX_FAILURE_TIMES means BE is unavailable more than 10 minutes.



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