001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.regionserver.compactions;
019
020import java.util.function.BiPredicate;
021
022import org.apache.hadoop.hbase.replication.SyncReplicationState;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * Check whether forbid major compaction for region.
027 */
028@InterfaceAudience.Private
029public class ForbidMajorCompactionChecker
030    implements BiPredicate<SyncReplicationState, SyncReplicationState> {
031
032  private static final ForbidMajorCompactionChecker INST = new ForbidMajorCompactionChecker();
033
034  @Override
035  public boolean test(SyncReplicationState state, SyncReplicationState newState) {
036    // Forbid major compaction when cluster transit sync replication state from S to DA
037    return state == SyncReplicationState.STANDBY
038        || newState == SyncReplicationState.DOWNGRADE_ACTIVE;
039  }
040
041  public static ForbidMajorCompactionChecker get() {
042    return INST;
043  }
044}