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/**
*
* 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.conf.Configuration;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Basic strategy chooses between two actions: flattening a segment or merging indices of all
* segments in the pipeline.
* If number of segments in pipeline exceed the limit defined in MemStoreCompactionStrategy then
* apply merge, otherwise flatten some segment.
*/
@InterfaceAudience.Private
public class BasicMemStoreCompactionStrategy extends MemStoreCompactionStrategy{
private static final String NAME = "BASIC";
public BasicMemStoreCompactionStrategy(Configuration conf, String cfName) {
super(conf, cfName);
}
@Override
public Action getAction(VersionedSegmentsList versionedList) {
return simpleMergeOrFlatten(versionedList, getName());
}
@Override
protected String getName() {
return NAME;
}
}