tez-dag/src/main/java/org/apache/tez/dag/app/ContainerHeartbeatHandler.java

/**
* 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
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package org.apache.tez.dag.app;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.tez.dag.api.TezConfiguration;
import org.apache.tez.dag.app.rm.container.AMContainerEvent;
import org.apache.tez.dag.app.rm.container.AMContainerEventType;

public class ContainerHeartbeatHandler extends
    HeartbeatHandlerBase<ContainerId> {

 
  public ContainerHeartbeatHandler(AppContext context, 
      int expectedConcurrency) {
    super(context, expectedConcurrency, "ContainerHeartbeatHandler");
  }

  @Override
  protected int getConfiguredTimeout(Configuration conf) {
    // TODO Maybe define separate timeouts for Containers and tasks.
    return conf.getInt(TezConfiguration.TASK_HEARTBEAT_TIMEOUT_MS, TezConfiguration.TASK_HEARTBEAT_TIMEOUT_MS_DEFAULT);
  }

  @Override
  protected int getConfiguredTimeoutCheckInterval(Configuration conf) {
    return conf.getInt(TezConfiguration.TASK_HEARTBEAT_TIMEOUT_CHECK_MS, TezConfiguration.TASK_HEARTBEAT_TIMEOUT_CHECK_MS_DEFAULT);
  }

  @Override
  protected boolean hasTimedOut(ReportTime report, long currentTime) {
    return (timeOut > 0) && (currentTime > report.getLastPing() + timeOut);

  }

  @SuppressWarnings("unchecked")
  @Override
  protected void handleTimeOut(ContainerId containerId) {
    eventHandler.handle(new AMContainerEvent(containerId,
        AMContainerEventType.C_TIMED_OUT));
  }

}