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.hamcrest.MatcherAssert.assertThat;
021import static org.hamcrest.Matchers.containsString;
022import static org.junit.jupiter.api.Assertions.assertEquals;
023import static org.junit.jupiter.api.Assertions.assertFalse;
024import static org.junit.jupiter.api.Assertions.assertNotEquals;
025import static org.junit.jupiter.api.Assertions.assertThrows;
026import static org.junit.jupiter.api.Assertions.assertTrue;
027
028import java.io.IOException;
029import java.util.ArrayList;
030import java.util.List;
031import org.apache.hadoop.hbase.ServerName;
032import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;
033import org.apache.hadoop.hbase.testclassification.ClientTests;
034import org.apache.hadoop.hbase.testclassification.MediumTests;
035import org.apache.hadoop.hbase.zookeeper.ZKUtil;
036import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
037import org.apache.hadoop.hbase.zookeeper.ZNodePaths;
038import org.junit.jupiter.api.Tag;
039import org.junit.jupiter.api.Test;
040
041@Tag(MediumTests.TAG)
042@Tag(ClientTests.TAG)
043public class TestAdmin4 extends TestAdminBase {
044
045  // For HBASE-24208
046  @Test
047  public void testDecommissionAndStopRegionServers() throws Exception {
048    List<ServerName> decommissionedRegionServers = ADMIN.listDecommissionedRegionServers();
049    assertTrue(decommissionedRegionServers.isEmpty());
050
051    ArrayList<ServerName> clusterRegionServers = new ArrayList<>(ADMIN.getRegionServers(true));
052
053    List<ServerName> serversToDecommission = new ArrayList<ServerName>();
054    serversToDecommission.add(clusterRegionServers.get(0));
055
056    // Decommission
057    ADMIN.decommissionRegionServers(serversToDecommission, true);
058    assertEquals(1, ADMIN.listDecommissionedRegionServers().size());
059
060    // Stop decommissioned region server and verify it is removed from draining znode
061    ServerName serverName = serversToDecommission.get(0);
062    ADMIN.stopRegionServer(serverName.getHostname() + ":" + serverName.getPort());
063    assertNotEquals(-1,
064      TEST_UTIL.waitFor(10000, () -> ADMIN.listDecommissionedRegionServers().isEmpty()),
065      "RS not removed from decommissioned list");
066    ZKWatcher zkw = TEST_UTIL.getZooKeeperWatcher();
067    assertEquals(-1, ZKUtil.checkExists(zkw,
068      ZNodePaths.joinZNode(zkw.getZNodePaths().drainingZNode, serverName.getServerName())));
069  }
070
071  @Test
072  public void testReplicationPeerModificationSwitch() throws Exception {
073    assertTrue(ADMIN.isReplicationPeerModificationEnabled());
074    try {
075      // disable modification, should returns true as it is enabled by default and the above
076      // assertion has confirmed it
077      assertTrue(ADMIN.replicationPeerModificationSwitch(false));
078      IOException error =
079        assertThrows(IOException.class, () -> ADMIN.addReplicationPeer("peer", ReplicationPeerConfig
080          .newBuilder().setClusterKey(TEST_UTIL.getRpcConnnectionURI()).build()));
081      assertThat(error.getCause().getMessage(),
082        containsString("Replication peer modification disabled"));
083      // enable again, and the previous value should be false
084      assertFalse(ADMIN.replicationPeerModificationSwitch(true));
085    } finally {
086      // always reset to avoid mess up other tests
087      ADMIN.replicationPeerModificationSwitch(true);
088    }
089  }
090}