hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestNewStartedRegionServerVersion.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.master;
  19
  20 import static org.junit.Assert.assertNotEquals;
  21
  22 import java.io.IOException;
  23 import java.util.List;
  24 import org.apache.hadoop.hbase.HBaseClassTestRule;
  25 import org.apache.hadoop.hbase.HBaseTestingUtil;
  26 import org.apache.hadoop.hbase.ServerName;
  27 import org.apache.hadoop.hbase.testclassification.MasterTests;
  28 import org.apache.hadoop.hbase.testclassification.MediumTests;
  29 import org.apache.hadoop.hbase.util.JVMClusterUtil;
  30 import org.junit.AfterClass;
  31 import org.junit.BeforeClass;
  32 import org.junit.ClassRule;
  33 import org.junit.Test;
  34 import org.junit.experimental.categories.Category;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 @Category({ MasterTests.class, MediumTests.class })
  39 public class TestNewStartedRegionServerVersion {
  40
  41   @ClassRule
  42   public static final HBaseClassTestRule CLASS_RULE =
  43     HBaseClassTestRule.forClass(TestNewStartedRegionServerVersion.class);
  44
  45   private static final Logger LOG =
  46     LoggerFactory.getLogger(TestNewStartedRegionServerVersion.class);
  47
  48   private static HBaseTestingUtil UTIL = new HBaseTestingUtil();
  49
  50   @BeforeClass
  51   public static void setUp() throws Exception {
  52     UTIL.startMiniCluster(1);
  53   }
  54
  55   @AfterClass
  56   public static void tearDown() throws Exception {
  57     UTIL.shutdownMiniCluster();
  58   }
  59
  60   @Test
  61   public void test() throws InterruptedException {
  62     // Start 3 new region server
  63     Thread t = new Thread(() -> {
  64       for (int i = 0; i < 3; i++) {
  65         try {
  66           JVMClusterUtil.RegionServerThread newRS = UTIL.getMiniHBaseCluster().startRegionServer();
  67           newRS.waitForServerOnline();
  68         } catch (IOException e) {
  69           LOG.error("Failed to start a new RS", e);
  70         }
  71       }
  72     });
  73     t.start();
  74
  75     HMaster master = UTIL.getMiniHBaseCluster().getMaster();
  76     while (t.isAlive()) {
  77       List<ServerName> serverNames = master.getServerManager().getOnlineServersList();
  78       for (ServerName serverName : serverNames) {
  79         assertNotEquals(0, master.getServerManager().getVersionNumber(serverName));
  80       }
  81       Thread.sleep(100);
  82     }
  83   }
  84 }