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.master;
019
020import java.io.IOException;
021import org.apache.hadoop.hbase.HConstants;
022import org.apache.hadoop.hbase.ScheduledChore;
023import org.apache.yetus.audience.InterfaceAudience;
024import org.slf4j.Logger;
025import org.slf4j.LoggerFactory;
026
027/**
028 * This chore is used to update the 'oldWALsDirSize' variable in {@link MasterWalManager} through
029 * the {@link MasterWalManager#updateOldWALsDirSize()} method.
030 */
031@InterfaceAudience.Private
032public class OldWALsDirSizeChore extends ScheduledChore {
033  private static final Logger LOG = LoggerFactory.getLogger(OldWALsDirSizeChore.class);
034
035  private final MasterServices master;
036
037  public OldWALsDirSizeChore(MasterServices master) {
038    super(master.getServerName() + "-OldWALsDirSizeChore", master,
039      master.getConfiguration().getInt(HConstants.HBASE_OLDWAL_DIR_SIZE_UPDATER_PERIOD,
040        HConstants.DEFAULT_HBASE_OLDWAL_DIR_SIZE_UPDATER_PERIOD));
041    this.master = master;
042  }
043
044  @Override
045  protected void chore() {
046    try {
047      this.master.getMasterWalManager().updateOldWALsDirSize();
048    } catch (IOException e) {
049      LOG.error("Got exception while trying to update the old WALs Directory size counter: "
050        + e.getMessage(), e);
051    }
052  }
053}