/**
* 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.chaos.actions;
import java.util.List;
import org.apache.commons.lang.math.RandomUtils;
import org.apache.hadoop.hbase.HRegionLocation;
import org.apache.hadoop.hbase.client.RegionLocator;
/**
* Action that restarts an HRegionServer holding one of the regions of the table.
*/
public class RestartRsHoldingTableAction extends RestartActionBaseAction {
private final RegionLocator locator;
public RestartRsHoldingTableAction(long sleepTime, RegionLocator locator) {
super(sleepTime);
this.locator = locator;
}
@Override
public void perform() throws Exception {
LOG.info("Performing action: Restart random RS holding table " + this.locator.getName());
List<HRegionLocation> locations = locator.getAllRegionLocations();
restartRs(locations.get(RandomUtils.nextInt(locations.size())).getServerName(), sleepTime);
}
}