org.apache.hadoop.hive.shims.SchedulerShim Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* to you under the Apache License, Version 2.0 (the
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* 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
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*/
package org.apache.hadoop.hive.shims;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
/**
* Shim for Fair scheduler
* HiveServer2 uses fair scheduler API to resolve the queue mapping for non-impersonation
* mode. This shim is avoid direct dependency of yarn fair scheduler on Hive.
*/
public interface SchedulerShim {
/**
* Reset the default fair scheduler queue mapping to end user.
* @param conf
* @param userName end user name
*/
public void refreshDefaultQueue(Configuration conf, String userName)
throws IOException;
}