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.client;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertTrue;
022
023import java.io.IOException;
024import java.util.EnumSet;
025import java.util.function.Supplier;
026import org.apache.hadoop.hbase.ClusterMetrics;
027import org.apache.hadoop.hbase.HBaseParameterizedTestTemplate;
028import org.apache.hadoop.hbase.testclassification.ClientTests;
029import org.apache.hadoop.hbase.testclassification.MediumTests;
030import org.junit.jupiter.api.AfterAll;
031import org.junit.jupiter.api.BeforeAll;
032import org.junit.jupiter.api.Tag;
033import org.junit.jupiter.api.TestTemplate;
034
035/**
036 * Testcase for HBASE-22135.
037 */
038@Tag(MediumTests.TAG)
039@Tag(ClientTests.TAG)
040@HBaseParameterizedTestTemplate(name = "{index}: policy = {0}")
041public class TestAsyncAdminMasterSwitch extends TestAsyncAdminBase {
042
043  public TestAsyncAdminMasterSwitch(Supplier<AsyncAdmin> admin) {
044    super(admin);
045  }
046
047  @BeforeAll
048  public static void setUpBeforeClass() throws Exception {
049    TestAsyncAdminBase.setUpBeforeClass();
050  }
051
052  @AfterAll
053  public static void tearDownAfterClass() throws Exception {
054    TestAsyncAdminBase.tearDownAfterClass();
055  }
056
057  @TestTemplate
058  public void testSwitch() throws IOException, InterruptedException {
059    assertEquals(TEST_UTIL.getHBaseCluster().getRegionServerThreads().size(),
060      admin.getClusterMetrics(EnumSet.of(ClusterMetrics.Option.SERVERS_NAME)).join()
061        .getServersName().size());
062    TEST_UTIL.getMiniHBaseCluster().stopMaster(0).join();
063    assertTrue(TEST_UTIL.getMiniHBaseCluster().waitForActiveAndReadyMaster(30000));
064    // make sure that we could still call master
065    assertEquals(TEST_UTIL.getHBaseCluster().getRegionServerThreads().size(),
066      admin.getClusterMetrics(EnumSet.of(ClusterMetrics.Option.SERVERS_NAME)).join()
067        .getServersName().size());
068  }
069}