hadoop CSQueueUsageTracker 源码
haddop CSQueueUsageTracker 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/capacity/CSQueueUsageTracker.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.capacity;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueResourceQuotas;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceUsage;
public class CSQueueUsageTracker {
private final CSQueueMetrics metrics;
private int numContainers;
/**
* The timestamp of the last submitted application to this queue.
* Only applies to dynamic queues.
*/
private long lastSubmittedTimestamp;
/**
* Tracks resource usage by label like used-resource / pending-resource.
*/
private final ResourceUsage queueUsage;
private final QueueResourceQuotas queueResourceQuotas;
public CSQueueUsageTracker(CSQueueMetrics metrics) {
this.metrics = metrics;
this.queueUsage = new ResourceUsage();
this.queueResourceQuotas = new QueueResourceQuotas();
}
public int getNumContainers() {
return numContainers;
}
public synchronized void increaseNumContainers() {
numContainers++;
}
public synchronized void decreaseNumContainers() {
numContainers--;
}
public CSQueueMetrics getMetrics() {
return metrics;
}
public long getLastSubmittedTimestamp() {
return lastSubmittedTimestamp;
}
public void setLastSubmittedTimestamp(long lastSubmittedTimestamp) {
this.lastSubmittedTimestamp = lastSubmittedTimestamp;
}
public ResourceUsage getQueueUsage() {
return queueUsage;
}
public QueueResourceQuotas getQueueResourceQuotas() {
return queueResourceQuotas;
}
}
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