hadoop SchedulerNodeReport 源码
haddop SchedulerNodeReport 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/SchedulerNodeReport.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;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Stable;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.ResourceUtilization;
/**
* Node usage report.
*/
@Private
@Stable
public class SchedulerNodeReport {
private final Resource used;
private final Resource avail;
private final ResourceUtilization utilization;
private final int num;
public SchedulerNodeReport(SchedulerNode node) {
this.used = node.getAllocatedResource();
this.avail = node.getUnallocatedResource();
this.num = node.getNumContainers();
this.utilization = node.getNodeUtilization();
}
/**
* @return the amount of resources currently used by the node.
*/
public Resource getUsedResource() {
return used;
}
/**
* @return the amount of resources currently available on the node
*/
public Resource getAvailableResource() {
return avail;
}
/**
* @return the number of containers currently running on this node.
*/
public int getNumContainers() {
return num;
}
/**
*
* @return utilization of this node
*/
public ResourceUtilization getUtilization() {
return utilization;
}
}
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