/**
* Copyright 2010 The Apache Software Foundation
*
* 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.master;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.executor.RegionTransitionEventData;
import org.apache.hadoop.hbase.executor.HBaseEventHandler.HBaseEventType;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Writables;
import org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class TestRestartCluster {
private static final Log LOG = LogFactory.getLog(TestRestartCluster.class);
private static Configuration conf;
private static HBaseTestingUtility utility;
private static ZooKeeperWrapper zkWrapper;
private static final byte[] TABLENAME = Bytes.toBytes("master_transitions");
private static final byte [][] FAMILIES = new byte [][] {Bytes.toBytes("a")};
@BeforeClass public static void beforeAllTests() throws Exception {
conf = HBaseConfiguration.create();
utility = new HBaseTestingUtility(conf);
}
@AfterClass public static void afterAllTests() throws IOException {
utility.shutdownMiniCluster();
}
@Before public void setup() throws IOException {
}
@Test (timeout=300000) public void testRestartClusterAfterKill()throws Exception {
utility.startMiniZKCluster();
zkWrapper = ZooKeeperWrapper.createInstance(conf, "cluster1");
// create the unassigned region, throw up a region opened state for META
String unassignedZNode = zkWrapper.getRegionInTransitionZNode();
zkWrapper.createZNodeIfNotExists(unassignedZNode);
byte[] data = null;
HBaseEventType hbEventType = HBaseEventType.RS2ZK_REGION_OPENED;
try {
data = Writables.getBytes(new RegionTransitionEventData(hbEventType, HMaster.MASTER));
} catch (IOException e) {
LOG.error("Error creating event data for " + hbEventType, e);
}
zkWrapper.createOrUpdateUnassignedRegion(
HRegionInfo.ROOT_REGIONINFO.getEncodedName(), data);
zkWrapper.createOrUpdateUnassignedRegion(
HRegionInfo.FIRST_META_REGIONINFO.getEncodedName(), data);
LOG.debug("Created UNASSIGNED zNode for ROOT and META regions in state " + HBaseEventType.M2ZK_REGION_OFFLINE);
// start the HB cluster
LOG.info("Starting HBase cluster...");
utility.startMiniCluster(2);
utility.createTable(TABLENAME, FAMILIES);
LOG.info("Created a table, waiting for table to be available...");
utility.waitTableAvailable(TABLENAME, 60*1000);
LOG.info("Master deleted unassgined region and started up successfully.");
}
}