hadoop ClusterMonitor 源码
haddop ClusterMonitor 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/ClusterMonitor.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;
import org.apache.hadoop.yarn.api.records.ResourceOption;
import org.apache.hadoop.yarn.server.api.protocolrecords.NMContainerStatus;
import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
import java.util.List;
/**
* Implementations of this class are notified of changes to the cluster's state,
* such as node addition, removal and updates.
*/
public interface ClusterMonitor {
void addNode(List<NMContainerStatus> containerStatuses, RMNode rmNode);
void removeNode(RMNode removedRMNode);
void updateNode(RMNode rmNode);
void updateNodeResource(RMNode rmNode, ResourceOption resourceOption);
}
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