hadoop GetAttributesToNodesRequest 源码
haddop GetAttributesToNodesRequest 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/GetAttributesToNodesRequest.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 java.util.Set;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Evolving;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
import org.apache.hadoop.yarn.api.records.NodeAttributeKey;
import org.apache.hadoop.yarn.util.Records;
/**
* <p>
* The request from clients to get node to attribute value mapping for all or
* given set of Node AttributeKey's in the cluster from the
* <code>ResourceManager</code>.
* </p>
*
* @see ApplicationClientProtocol#getAttributesToNodes
* (GetAttributesToNodesRequest)
*/
@Public
@Evolving
public abstract class GetAttributesToNodesRequest {
public static GetAttributesToNodesRequest newInstance() {
return Records.newRecord(GetAttributesToNodesRequest.class);
}
public static GetAttributesToNodesRequest newInstance(
Set<NodeAttributeKey> attributes) {
GetAttributesToNodesRequest request =
Records.newRecord(GetAttributesToNodesRequest.class);
request.setNodeAttributes(attributes);
return request;
}
/**
* Set node attributeKeys for which the mapping of hostname to attribute value
* is required.
*
* @param attributes Set of NodeAttributeKey provided.
*/
@Public
@Unstable
public abstract void setNodeAttributes(Set<NodeAttributeKey> attributes);
/**
* Get node attributeKeys for which mapping of hostname to attribute value is
* required.
*
* @return Set of NodeAttributeKey
*/
@Public
@Unstable
public abstract Set<NodeAttributeKey> getNodeAttributes();
}
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