001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.master;
019
020import org.apache.hadoop.hbase.HBaseClassTestRule;
021import org.apache.hadoop.hbase.HBaseTestingUtil;
022import org.apache.hadoop.hbase.testclassification.MasterTests;
023import org.apache.hadoop.hbase.testclassification.MediumTests;
024import org.apache.hadoop.hbase.util.JVMClusterUtil.RegionServerThread;
025import org.junit.AfterClass;
026import org.junit.BeforeClass;
027import org.junit.ClassRule;
028import org.junit.Test;
029import org.junit.experimental.categories.Category;
030
031/**
032 * Testcase to confirm that we will not hang when shutdown a cluster with no live region servers.
033 */
034@Category({ MasterTests.class, MediumTests.class })
035public class TestShutdownWithNoRegionServer {
036
037  @ClassRule
038  public static final HBaseClassTestRule CLASS_RULE =
039    HBaseClassTestRule.forClass(TestShutdownWithNoRegionServer.class);
040
041  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
042
043  @BeforeClass
044  public static void setUp() throws Exception {
045    UTIL.startMiniCluster(1);
046  }
047
048  @AfterClass
049  public static void tearDown() throws Exception {
050    UTIL.shutdownMiniCluster();
051  }
052
053  @Test
054  public void test() throws InterruptedException {
055    RegionServerThread t = UTIL.getMiniHBaseCluster().stopRegionServer(0);
056    t.join();
057  }
058}