| /* |
| * Copyright 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.regionserver; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| import java.util.UUID; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.CoordinatedStateManager; |
| import org.apache.hadoop.hbase.CoordinatedStateManagerFactory; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.master.LoadBalancer; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.RegionServerTests; |
| import org.apache.hadoop.hbase.master.HMaster; |
| import org.apache.hadoop.hbase.util.FSUtils; |
| import org.apache.hadoop.hbase.util.JVMClusterUtil; |
| import org.apache.hadoop.hbase.zookeeper.ZKClusterId; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| |
| /** |
| * Test metrics incremented on region server operations. |
| */ |
| @Category({RegionServerTests.class, MediumTests.class}) |
| public class TestClusterId { |
| |
| private final HBaseTestingUtility TEST_UTIL = |
| new HBaseTestingUtility(); |
| |
| private JVMClusterUtil.RegionServerThread rst; |
| |
| @Before |
| public void setUp() throws Exception { |
| TEST_UTIL.getConfiguration().setBoolean(ShutdownHook.RUN_SHUTDOWN_HOOK, false); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| if(rst != null && rst.getRegionServer() != null) { |
| rst.getRegionServer().stop("end of test"); |
| rst.join(); |
| } |
| } |
| |
| @Test |
| public void testClusterId() throws Exception { |
| TEST_UTIL.startMiniZKCluster(); |
| TEST_UTIL.startMiniDFSCluster(1); |
| |
| Configuration conf = new Configuration(TEST_UTIL.getConfiguration()); |
| CoordinatedStateManager cp = CoordinatedStateManagerFactory.getCoordinatedStateManager(conf); |
| //start region server, needs to be separate |
| //so we get an unset clusterId |
| rst = JVMClusterUtil.createRegionServerThread(conf,cp, |
| HRegionServer.class, 0); |
| rst.start(); |
| //Make sure RS is in blocking state |
| Thread.sleep(10000); |
| |
| TEST_UTIL.startMiniHBaseCluster(1, 0); |
| |
| rst.waitForServerOnline(); |
| |
| String clusterId = ZKClusterId.readClusterIdZNode(TEST_UTIL.getZooKeeperWatcher()); |
| assertNotNull(clusterId); |
| assertEquals(clusterId, rst.getRegionServer().getClusterId()); |
| } |
| |
| @Test |
| public void testRewritingClusterIdToPB() throws Exception { |
| TEST_UTIL.startMiniZKCluster(); |
| TEST_UTIL.startMiniDFSCluster(1); |
| TEST_UTIL.createRootDir(); |
| Path rootDir = FSUtils.getRootDir(TEST_UTIL.getConfiguration()); |
| FileSystem fs = rootDir.getFileSystem(TEST_UTIL.getConfiguration()); |
| Path filePath = new Path(rootDir, HConstants.CLUSTER_ID_FILE_NAME); |
| FSDataOutputStream s = null; |
| try { |
| s = fs.create(filePath); |
| s.writeUTF(UUID.randomUUID().toString()); |
| } finally { |
| if (s != null) { |
| s.close(); |
| } |
| } |
| TEST_UTIL.startMiniHBaseCluster(1, 1); |
| HMaster master = TEST_UTIL.getHBaseCluster().getMaster(); |
| int expected = LoadBalancer.isTablesOnMaster(TEST_UTIL.getConfiguration())? 2: 1; |
| assertEquals(expected, master.getServerManager().getOnlineServersList().size()); |
| } |
| |
| } |
| |