hadoop ContainerPreemptEvent 源码
haddop ContainerPreemptEvent 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/scheduler/event/ContainerPreemptEvent.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.scheduler.event;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
/**
* Simple event class used to communicate kill reserved containers, mark
* containers for preemption and kill already preemption-marked containers.
*/
public class ContainerPreemptEvent extends SchedulerEvent {
private final ApplicationAttemptId aid;
private final RMContainer container;
public ContainerPreemptEvent(ApplicationAttemptId aid, RMContainer container,
SchedulerEventType type) {
super(type);
this.aid = aid;
this.container = container;
}
public RMContainer getContainer(){
return this.container;
}
public ApplicationAttemptId getAppId() {
return aid;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder(super.toString());
sb.append(" ").append(getAppId())
.append(" ").append(getContainer().getContainerId());
return sb.toString();
}
}
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