/**
* 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.hbase.regionserver;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.regionserver.HeapMemoryManager.TunerContext;
import org.apache.hadoop.hbase.regionserver.HeapMemoryManager.TunerResult;
/**
* An implementation of HeapMemoryTuner which is not doing any tuning activity but just allows to
* continue with old style fixed proportions.
*/
@InterfaceAudience.Private
public class NoOpHeapMemoryTuner implements HeapMemoryTuner {
private static final TunerResult NO_OP_TUNER_RESULT = new TunerResult(false);
@Override
public Configuration getConf() {
return null;
}
@Override
public void setConf(Configuration conf) {
}
@Override
public TunerResult tune(TunerContext context) {
return NO_OP_TUNER_RESULT;
}
}