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