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.util;
019
020import java.util.List;
021import java.util.stream.Collectors;
022import java.util.stream.IntStream;
023import org.apache.hadoop.conf.Configuration;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.HBaseConfiguration;
026import org.apache.hadoop.hbase.HBaseTestingUtility;
027import org.apache.hadoop.hbase.HConstants;
028import org.apache.hadoop.hbase.MiniHBaseCluster;
029import org.apache.hadoop.hbase.ServerName;
030import org.apache.hadoop.hbase.TableName;
031import org.apache.hadoop.hbase.client.Admin;
032import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
033import org.apache.hadoop.hbase.client.Put;
034import org.apache.hadoop.hbase.client.Table;
035import org.apache.hadoop.hbase.client.TableDescriptor;
036import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
037import org.apache.hadoop.hbase.regionserver.HRegionServer;
038import org.apache.hadoop.hbase.testclassification.LargeTests;
039import org.apache.hadoop.hbase.testclassification.MiscTests;
040import org.junit.AfterClass;
041import org.junit.Assert;
042import org.junit.Before;
043import org.junit.BeforeClass;
044import org.junit.ClassRule;
045import org.junit.Rule;
046import org.junit.Test;
047import org.junit.experimental.categories.Category;
048import org.junit.rules.TestName;
049import org.slf4j.Logger;
050import org.slf4j.LoggerFactory;
051
052@Category({ MiscTests.class, LargeTests.class })
053public class TestRegionMoverUseIp {
054
055  @ClassRule
056  public static final HBaseClassTestRule CLASS_RULE =
057    HBaseClassTestRule.forClass(TestRegionMoverUseIp.class);
058  private static final Logger LOG = LoggerFactory.getLogger(TestRegionMoverUseIp.class);
059
060  @Rule
061  public TestName name = new TestName();
062
063  private static HBaseTestingUtility TEST_UTIL;
064  private static ServerName rs0;
065  private static ServerName rs1;
066  private static ServerName rs2;
067
068  @BeforeClass
069  public static void setUpBeforeClass() throws Exception {
070    Configuration conf = HBaseConfiguration.create();
071    conf.setBoolean(HConstants.HBASE_SERVER_USEIP_ENABLED_KEY, true);
072    TEST_UTIL = new HBaseTestingUtility(conf);
073    TEST_UTIL.startMiniCluster(3);
074
075    MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
076    rs0 = cluster.getRegionServer(0).getServerName();
077    rs1 = cluster.getRegionServer(1).getServerName();
078    rs2 = cluster.getRegionServer(2).getServerName();
079    LOG.info("rs0 hostname=" + rs0.getHostname());
080    LOG.info("rs1 hostname=" + rs1.getHostname());
081    LOG.info("rs2 hostname=" + rs2.getHostname());
082    TEST_UTIL.getAdmin().balancerSwitch(false, true);
083  }
084
085  @AfterClass
086  public static void tearDownAfterClass() throws Exception {
087    TEST_UTIL.shutdownMiniCluster();
088  }
089
090  @Before
091  public void setUp() throws Exception {
092    final TableName tableName = TableName.valueOf(name.getMethodName());
093    TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tableName)
094      .setColumnFamily(ColumnFamilyDescriptorBuilder.of("fam1")).build();
095    int startKey = 0;
096    int endKey = 80000;
097    TEST_UTIL.getAdmin().createTable(tableDesc, Bytes.toBytes(startKey), Bytes.toBytes(endKey), 9);
098  }
099
100  @Test
101  public void testRegionUnloadUesIp() throws Exception {
102    final TableName tableName = TableName.valueOf(name.getMethodName());
103    MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
104    Admin admin = TEST_UTIL.getAdmin();
105    Table table = TEST_UTIL.getConnection().getTable(tableName);
106    List<Put> puts = IntStream.range(10, 50000).mapToObj(i -> new Put(Bytes.toBytes(i))
107      .addColumn(Bytes.toBytes("fam1"), Bytes.toBytes("q1"), Bytes.toBytes("val_" + i)))
108      .collect(Collectors.toList());
109    table.put(puts);
110    admin.flush(tableName);
111    admin.compact(tableName);
112    Thread.sleep(3000);
113    HRegionServer hRegionServer0 = cluster.getRegionServer(0);
114    HRegionServer hRegionServer1 = cluster.getRegionServer(1);
115    HRegionServer hRegionServer2 = cluster.getRegionServer(2);
116    int numRegions0 = hRegionServer0.getNumberOfOnlineRegions();
117    int numRegions1 = hRegionServer1.getNumberOfOnlineRegions();
118    int numRegions2 = hRegionServer2.getNumberOfOnlineRegions();
119
120    Assert.assertTrue(numRegions0 >= 3);
121    Assert.assertTrue(numRegions1 >= 3);
122    Assert.assertTrue(numRegions2 >= 3);
123    int totalRegions = numRegions0 + numRegions1 + numRegions2;
124
125    // source RS: rs0
126    String sourceRSName = rs0.getAddress().toString();
127    RegionMover.RegionMoverBuilder rmBuilder =
128      new RegionMover.RegionMoverBuilder(sourceRSName, TEST_UTIL.getConfiguration()).ack(true)
129        .maxthreads(8);
130    try (RegionMover regionMover = rmBuilder.build()) {
131      regionMover.unload();
132      int newNumRegions0 = hRegionServer0.getNumberOfOnlineRegions();
133      int newNumRegions1 = hRegionServer1.getNumberOfOnlineRegions();
134      int newNumRegions2 = hRegionServer2.getNumberOfOnlineRegions();
135      Assert.assertEquals(0, newNumRegions0);
136      Assert.assertEquals(totalRegions, newNumRegions1 + newNumRegions2);
137    }
138  }
139}