hadoop ContainerAllocationExpirer 源码
haddop ContainerAllocationExpirer 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/ContainerAllocationExpirer.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
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.rmcontainer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.event.Dispatcher;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.ContainerExpiredSchedulerEvent;
import org.apache.hadoop.yarn.util.AbstractLivelinessMonitor;
@SuppressWarnings({"unchecked", "rawtypes"})
public class ContainerAllocationExpirer extends
AbstractLivelinessMonitor<AllocationExpirationInfo> {
private EventHandler dispatcher;
public ContainerAllocationExpirer(Dispatcher d) {
super(ContainerAllocationExpirer.class.getName());
this.dispatcher = d.getEventHandler();
}
public void serviceInit(Configuration conf) throws Exception {
int expireIntvl = conf.getInt(
YarnConfiguration.RM_CONTAINER_ALLOC_EXPIRY_INTERVAL_MS,
YarnConfiguration.DEFAULT_RM_CONTAINER_ALLOC_EXPIRY_INTERVAL_MS);
setExpireInterval(expireIntvl);
setMonitorInterval(expireIntvl/3);
super.serviceInit(conf);
}
@Override
protected void expire(AllocationExpirationInfo allocationExpirationInfo) {
dispatcher.handle(new ContainerExpiredSchedulerEvent(
allocationExpirationInfo.getContainerId(),
allocationExpirationInfo.isIncrease()));
}
}
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