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https://issues.apache.org/jira/browse/FLINK-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15853996#comment-15853996
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ASF GitHub Bot commented on FLINK-4449:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/2791#discussion_r99581410
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/HeartbeatService.java
---
@@ -0,0 +1,131 @@
+/*
+ * 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.flink.runtime.resourcemanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceID;
+import org.apache.flink.runtime.heartbeat.HeartbeatListener;
+import org.apache.flink.runtime.heartbeat.HeartbeatManagerSenderImpl;
+import org.apache.flink.runtime.heartbeat.HeartbeatTarget;
+import org.apache.flink.runtime.taskexecutor.TaskExecutorGateway;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Service which is responsible for heartbeat communication with
TaskExecutor.
+ */
+public class HeartbeatService {
--- End diff --
I think this wrapper class is unnecessary. I think it would be better to
directly give the `HeartbeatManager` to the `ResourceManager`. Then we save a
level of indirection.
> Heartbeat Manager integration with TaskExecutor
> -----------------------------------------------
>
> Key: FLINK-4449
> URL: https://issues.apache.org/jira/browse/FLINK-4449
> Project: Flink
> Issue Type: Sub-task
> Components: Cluster Management
> Reporter: zhangjing
> Assignee: zhangjing
>
> ResourceManager need a heartbeat manager to monitor the connections with all
> registered TaskExecutor.
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