hadoop MutableConfScheduler 源码
haddop MutableConfScheduler 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/MutableConfScheduler.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.conf.Configuration;
/**
* Interface for a scheduler that supports changing configuration at runtime.
*
*/
public interface MutableConfScheduler extends ResourceScheduler {
/**
* Get the scheduler configuration.
* @return the scheduler configuration
*/
Configuration getConfiguration();
/**
* Get queue object based on queue name.
* @param queueName the queue name
* @return the queue object
*/
Queue getQueue(String queueName);
/**
* Return whether the scheduler configuration is mutable.
* @return whether scheduler configuration is mutable or not.
*/
boolean isConfigurationMutable();
/**
* Get scheduler's configuration provider, so other classes can directly
* call mutation APIs on configuration provider.
* @return scheduler's configuration provider
*/
MutableConfigurationProvider getMutableConfProvider();
}
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