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.HBaseTestingUtil;
021import org.apache.hadoop.hbase.testclassification.MasterTests;
022import org.apache.hadoop.hbase.testclassification.MediumTests;
023import org.apache.hadoop.hbase.util.JVMClusterUtil.RegionServerThread;
024import org.junit.jupiter.api.AfterAll;
025import org.junit.jupiter.api.BeforeAll;
026import org.junit.jupiter.api.Tag;
027import org.junit.jupiter.api.Test;
028
029/**
030 * Testcase to confirm that we will not hang when shutdown a cluster with no live region servers.
031 */
032@Tag(MasterTests.TAG)
033@Tag(MediumTests.TAG)
034public class TestShutdownWithNoRegionServer {
035
036  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
037
038  @BeforeAll
039  public static void setUp() throws Exception {
040    UTIL.startMiniCluster(1);
041  }
042
043  @AfterAll
044  public static void tearDown() throws Exception {
045    UTIL.shutdownMiniCluster();
046  }
047
048  @Test
049  public void test() throws InterruptedException {
050    RegionServerThread t = UTIL.getMiniHBaseCluster().stopRegionServer(0);
051    t.join();
052  }
053}