hadoop LCEResourcesHandler 源码
haddop LCEResourcesHandler 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/LCEResourcesHandler.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.nodemanager.util;
import java.io.IOException;
import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.server.nodemanager.LinuxContainerExecutor;
@Deprecated
public interface LCEResourcesHandler extends Configurable {
void init(LinuxContainerExecutor lce) throws IOException;
/**
* Called by the LinuxContainerExecutor before launching the executable
* inside the container.
* @param containerId the id of the container being launched
* @param containerResource the node resources the container will be using
*/
void preExecute(ContainerId containerId, Resource containerResource)
throws IOException;
/**
* Called by the LinuxContainerExecutor after the executable inside the
* container has exited (successfully or not).
* @param containerId the id of the container which was launched
*/
void postExecute(ContainerId containerId);
String getResourcesOption(ContainerId containerId);
}
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