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;
019
020import org.apache.hadoop.hbase.client.RegionInfo;
021import org.apache.hadoop.hbase.executor.EventType;
022import org.apache.hadoop.hbase.procedure2.BaseRSProcedureCallable;
023import org.apache.yetus.audience.InterfaceAudience;
024import org.slf4j.Logger;
025import org.slf4j.LoggerFactory;
026
027import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
028import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;
029
030/**
031 * This is a RegionServer-side callable used by the HBase Master Procedure framework to perform the
032 * actual HFiles refresh operation on a specific region. It is dispatched from the
033 * {@link org.apache.hadoop.hbase.master.procedure.RefreshHFilesRegionProcedure} to the RegionServer
034 * and executes the logic to refresh store files in each store of the region.
035 */
036
037@InterfaceAudience.Private
038public class RefreshHFilesCallable extends BaseRSProcedureCallable {
039  private static final Logger LOG = LoggerFactory.getLogger(RefreshHFilesCallable.class);
040
041  private RegionInfo regionInfo;
042
043  @Override
044  protected byte[] doCall() throws Exception {
045    HRegion region = rs.getRegion(regionInfo.getEncodedName());
046    LOG.debug("Starting refreshHfiles operation on region {}", region);
047
048    for (Store store : region.getStores()) {
049      store.refreshStoreFiles();
050    }
051    return null;
052  }
053
054  @Override
055  protected void initParameter(byte[] parameter) throws Exception {
056    MasterProcedureProtos.RefreshHFilesRegionParameter param =
057      MasterProcedureProtos.RefreshHFilesRegionParameter.parseFrom(parameter);
058    this.regionInfo = ProtobufUtil.toRegionInfo(param.getRegion());
059  }
060
061  @Override
062  public EventType getEventType() {
063    return EventType.RS_REFRESH_HFILES;
064  }
065}