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 static org.junit.Assert.assertNotEquals;
021
022import java.io.IOException;
023import java.util.List;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.HBaseTestingUtility;
026import org.apache.hadoop.hbase.ServerName;
027import org.apache.hadoop.hbase.testclassification.MasterTests;
028import org.apache.hadoop.hbase.testclassification.MediumTests;
029import org.apache.hadoop.hbase.util.JVMClusterUtil;
030import org.junit.AfterClass;
031import org.junit.BeforeClass;
032import org.junit.ClassRule;
033import org.junit.Test;
034import org.junit.experimental.categories.Category;
035import org.slf4j.Logger;
036import org.slf4j.LoggerFactory;
037
038@Category({ MasterTests.class, MediumTests.class })
039public class TestNewStartedRegionServerVersion {
040
041  @ClassRule
042  public static final HBaseClassTestRule CLASS_RULE =
043    HBaseClassTestRule.forClass(TestNewStartedRegionServerVersion.class);
044
045  private static final Logger LOG =
046    LoggerFactory.getLogger(TestNewStartedRegionServerVersion.class);
047
048  private static HBaseTestingUtility UTIL = new HBaseTestingUtility();
049
050  @BeforeClass
051  public static void setUp() throws Exception {
052    UTIL.startMiniCluster(1);
053  }
054
055  @AfterClass
056  public static void tearDown() throws Exception {
057    UTIL.shutdownMiniCluster();
058  }
059
060  @Test
061  public void test() throws InterruptedException {
062    // Start 3 new region server
063    Thread t = new Thread(() -> {
064      for (int i = 0; i < 3; i++) {
065        try {
066          JVMClusterUtil.RegionServerThread newRS = UTIL.getMiniHBaseCluster().startRegionServer();
067          newRS.waitForServerOnline();
068        } catch (IOException e) {
069          LOG.error("Failed to start a new RS", e);
070        }
071      }
072    });
073    t.start();
074
075    HMaster master = UTIL.getMiniHBaseCluster().getMaster();
076    while (t.isAlive()) {
077      List<ServerName> serverNames = master.getServerManager().getOnlineServersList();
078      for (ServerName serverName : serverNames) {
079        assertNotEquals(0, master.getServerManager().getVersionNumber(serverName));
080      }
081      Thread.sleep(100);
082    }
083  }
084}