| /** |
| * 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 static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HRegionInfo; |
| import org.apache.hadoop.hbase.TableExistsException; |
| import org.apache.hadoop.hbase.client.MetaScanner; |
| import org.apache.hadoop.hbase.executor.EventHandler.EventType; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.zookeeper.ZKAssign; |
| import org.apache.hadoop.hbase.zookeeper.ZKUtil; |
| import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestRestartCluster { |
| private static final Log LOG = LogFactory.getLog(TestRestartCluster.class); |
| private static HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| private static ZooKeeperWatcher zooKeeper; |
| private static final byte[] TABLENAME = Bytes.toBytes("master_transitions"); |
| private static final byte [][] FAMILIES = new byte [][] {Bytes.toBytes("a")}; |
| |
| |
| private static final byte [][] TABLES = new byte[][] { |
| Bytes.toBytes("restartTableOne"), |
| Bytes.toBytes("restartTableTwo"), |
| Bytes.toBytes("restartTableThree") |
| }; |
| private static final byte [] FAMILY = Bytes.toBytes("family"); |
| |
| @Before public void setup() throws Exception { |
| } |
| |
| @After public void teardown() throws IOException { |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test (timeout=300000) public void testRestartClusterAfterKill() |
| throws Exception { |
| UTIL.startMiniZKCluster(); |
| zooKeeper = new ZooKeeperWatcher(UTIL.getConfiguration(), "cluster1", null); |
| |
| // create the unassigned region, throw up a region opened state for META |
| String unassignedZNode = zooKeeper.assignmentZNode; |
| ZKUtil.createAndFailSilent(zooKeeper, unassignedZNode); |
| |
| ZKAssign.createNodeOffline(zooKeeper, HRegionInfo.ROOT_REGIONINFO, |
| HMaster.MASTER); |
| |
| ZKAssign.createNodeOffline(zooKeeper, HRegionInfo.FIRST_META_REGIONINFO, |
| HMaster.MASTER); |
| |
| LOG.debug("Created UNASSIGNED zNode for ROOT and META regions in state " + |
| EventType.M_ZK_REGION_OFFLINE); |
| |
| // start the HB cluster |
| LOG.info("Starting HBase cluster..."); |
| UTIL.startMiniCluster(2); |
| |
| UTIL.createTable(TABLENAME, FAMILIES); |
| LOG.info("Created a table, waiting for table to be available..."); |
| UTIL.waitTableAvailable(TABLENAME, 60*1000); |
| |
| LOG.info("Master deleted unassigned region and started up successfully."); |
| } |
| |
| @Test (timeout=300000) |
| public void testClusterRestart() throws Exception { |
| UTIL.startMiniCluster(3); |
| LOG.info("\n\nCreating tables"); |
| for(byte [] TABLE : TABLES) { |
| UTIL.createTable(TABLE, FAMILY); |
| UTIL.waitTableAvailable(TABLE, 30000); |
| } |
| List<HRegionInfo> allRegions = |
| MetaScanner.listAllRegions(UTIL.getConfiguration()); |
| assertEquals(3, allRegions.size()); |
| |
| LOG.info("\n\nShutting down cluster"); |
| UTIL.getHBaseCluster().shutdown(); |
| UTIL.getHBaseCluster().join(); |
| |
| LOG.info("\n\nSleeping a bit"); |
| Thread.sleep(2000); |
| |
| LOG.info("\n\nStarting cluster the second time"); |
| UTIL.restartHBaseCluster(3); |
| |
| // Need to use a new 'Configuration' so we make a new HConnection. |
| // Otherwise we're reusing an HConnection that has gone stale because |
| // the shutdown of the cluster also called shut of the connection. |
| allRegions = MetaScanner. |
| listAllRegions(new Configuration(UTIL.getConfiguration())); |
| assertEquals(3, allRegions.size()); |
| |
| LOG.info("\n\nWaiting for tables to be available"); |
| for(byte [] TABLE: TABLES) { |
| try { |
| UTIL.createTable(TABLE, FAMILY); |
| assertTrue("Able to create table that should already exist", false); |
| } catch(TableExistsException tee) { |
| LOG.info("Table already exists as expected"); |
| } |
| UTIL.waitTableAvailable(TABLE, 30000); |
| } |
| } |
| } |