/**
* 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 org.apache.hadoop.hbase.ClusterStatus;
import org.apache.hadoop.hbase.ServerName;
/**
* Action that tries to restart the HRegionServer holding Meta.
*/
public class RestartRsHoldingMetaAction extends RestartActionBaseAction {
public RestartRsHoldingMetaAction(long sleepTime) {
super(sleepTime);
}
@Override
public void perform() throws Exception {
LOG.info("Performing action: Restart region server holding META");
ServerName server = cluster.getServerHoldingMeta();
if (server == null) {
LOG.warn("No server is holding hbase:meta right now.");
return;
}
ClusterStatus clusterStatus = cluster.getClusterStatus();
if (server.equals(clusterStatus.getMaster())) {
// Master holds the meta, so restart the master.
restartMaster(server, sleepTime);
} else {
restartRs(server, sleepTime);
}
}
}