wu-sheng commented on a change in pull request #4220: sniffer processing 
profile task and report status and snapshot
URL: https://github.com/apache/skywalking/pull/4220#discussion_r366872527
 
 

 ##########
 File path: 
apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileThread.java
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 @@ -0,0 +1,111 @@
+/*
+ * 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.skywalking.apm.agent.core.profile;
+
+import org.apache.skywalking.apm.agent.core.boot.ServiceManager;
+import org.apache.skywalking.apm.agent.core.logging.api.ILog;
+import org.apache.skywalking.apm.agent.core.logging.api.LogManager;
+
+/**
+ * Profile task process thread, dump segment executing thread stack.
+ *
+ * @author MrPro
+ */
+public class ProfileThread implements Runnable {
+
+    private static final ILog logger = 
LogManager.getLogger(ProfileThread.class);
+
+    // profiling task context
+    private final ProfileTaskExecutionContext taskExecutionContext;
+
+    private final ProfileTaskExecutionService profileTaskExecutionService;
+    private final ProfileTaskChannelService profileTaskChannelService;
+
+    public ProfileThread(ProfileTaskExecutionContext taskExecutionContext) {
+        this.taskExecutionContext = taskExecutionContext;
+        profileTaskExecutionService = 
ServiceManager.INSTANCE.findService(ProfileTaskExecutionService.class);
+        profileTaskChannelService = 
ServiceManager.INSTANCE.findService(ProfileTaskChannelService.class);
+    }
+
+    @Override
+    public void run() {
+
+        try {
+            profiling(taskExecutionContext);
+        } catch (InterruptedException e) {
+            // ignore interrupted
+            // means current task has stopped
 
 Review comment:
   Is this for shutdown process only?

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