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.chaos.actions;
019
020import org.apache.hadoop.hbase.ServerName;
021import org.slf4j.Logger;
022import org.slf4j.LoggerFactory;
023
024/**
025 * Action that tries to restart the active master.
026 */
027public class RestartActiveMasterAction extends RestartActionBaseAction {
028  private static final Logger LOG = LoggerFactory.getLogger(RestartActiveMasterAction.class);
029
030  public RestartActiveMasterAction(long sleepTime) {
031    super(sleepTime);
032  }
033
034  @Override
035  protected Logger getLogger() {
036    return LOG;
037  }
038
039  @Override
040  public void perform() throws Exception {
041    getLogger().info("Performing action: Restart active master");
042
043    ServerName master = cluster.getClusterMetrics().getMasterName();
044    restartMaster(master, sleepTime);
045  }
046}