hadoop ContainerUpdateRequest 源码
haddop ContainerUpdateRequest 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/ContainerUpdateRequest.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.api.protocolrecords;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
import org.apache.hadoop.yarn.api.records.NMToken;
import org.apache.hadoop.yarn.api.records.Token;
import org.apache.hadoop.yarn.util.Records;
import java.util.List;
/**
* <p>The request sent by <code>Application Master</code> to the
* <code>Node Manager</code> to change the resource quota of a container.</p>
*
* @see ContainerManagementProtocol#updateContainer(ContainerUpdateRequest)
*/
@Public
@Unstable
public abstract class ContainerUpdateRequest {
@Public
@Unstable
public static ContainerUpdateRequest newInstance(
List<Token> containersToIncrease) {
ContainerUpdateRequest request =
Records.newRecord(ContainerUpdateRequest.class);
request.setContainersToUpdate(containersToIncrease);
return request;
}
/**
* Get a list of container tokens to be used for authorization during
* container resource update.
* <p>
* Note: {@link NMToken} will be used for authenticating communication with
* {@code NodeManager}.
* @return the list of container tokens to be used for authorization during
* container resource update.
* @see NMToken
*/
@Public
@Unstable
public abstract List<Token> getContainersToUpdate();
/**
* Set container tokens to be used during container resource increase.
* The token is acquired from
* <code>AllocateResponse.getUpdatedContainers</code>.
* The token contains the container id and resource capability required for
* container resource update.
* @param containersToUpdate the list of container tokens to be used
* for container resource increase.
*/
@Public
@Unstable
public abstract void setContainersToUpdate(
List<Token> containersToUpdate);
}
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