/**
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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 org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.zookeeper.ZKServerTool;
/**
* Action that restarts a random zookeeper node.
*/
public class RestartRandomZKNodeAction extends RestartActionBaseAction {
public RestartRandomZKNodeAction(long sleepTime) {
super(sleepTime);
}
@Override
public void perform() throws Exception {
LOG.info("Performing action: Restart random zookeeper node");
ServerName server = PolicyBasedChaosMonkey.selectRandomItem(
ZKServerTool.readZKNodes(getConf()));
restartZKNode(server, sleepTime);
}
}