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.CoreMatchers.instanceOf;
021import static org.hamcrest.MatcherAssert.assertThat;
022import static org.junit.Assert.assertEquals;
023import static org.junit.Assert.assertNotEquals;
024
025import java.io.IOException;
026import java.util.List;
027import java.util.Map;
028import java.util.concurrent.ExecutionException;
029import java.util.stream.Collectors;
030import org.apache.hadoop.hbase.HBaseClassTestRule;
031import org.apache.hadoop.hbase.HBaseTestingUtil;
032import org.apache.hadoop.hbase.HConstants;
033import org.apache.hadoop.hbase.HRegionLocation;
034import org.apache.hadoop.hbase.TableName;
035import org.apache.hadoop.hbase.security.User;
036import org.apache.hadoop.hbase.testclassification.ClientTests;
037import org.apache.hadoop.hbase.testclassification.LargeTests;
038import org.apache.hadoop.hbase.util.Bytes;
039import org.junit.BeforeClass;
040import org.junit.ClassRule;
041import org.junit.Test;
042import org.junit.experimental.categories.Category;
043import org.junit.runner.RunWith;
044import org.junit.runners.Parameterized;
045
046@RunWith(Parameterized.class)
047@Category({ LargeTests.class, ClientTests.class })
048public class TestAsyncAdminWithRegionReplicas extends TestAsyncAdminBase {
049
050  @ClassRule
051  public static final HBaseClassTestRule CLASS_RULE =
052    HBaseClassTestRule.forClass(TestAsyncAdminWithRegionReplicas.class);
053
054  @BeforeClass
055  public static void setUpBeforeClass() throws Exception {
056    TestAsyncAdminBase.setUpBeforeClass();
057    HBaseTestingUtil.setReplicas(TEST_UTIL.getAdmin(), TableName.META_TABLE_NAME, 3);
058    try (ConnectionRegistry registry =
059      ConnectionRegistryFactory.create(TEST_UTIL.getConfiguration(), User.getCurrent())) {
060      RegionReplicaTestHelper.waitUntilAllMetaReplicasAreReady(TEST_UTIL, registry);
061    }
062  }
063
064  private void testMoveNonDefaultReplica(TableName tableName)
065    throws InterruptedException, ExecutionException {
066    AsyncTableRegionLocator locator = ASYNC_CONN.getRegionLocator(tableName);
067    List<HRegionLocation> locs = locator.getAllRegionLocations().get();
068    // try region name
069    admin.move(locs.get(1).getRegion().getRegionName()).get();
070    assertNotEquals(locs.get(1).getServerName(),
071      locator.getRegionLocation(HConstants.EMPTY_START_ROW, 1, true).get());
072    // try encoded region name
073    admin.move(locs.get(2).getRegion().getEncodedNameAsBytes()).get();
074    assertNotEquals(locs.get(2).getServerName(),
075      locator.getRegionLocation(HConstants.EMPTY_START_ROW, 2, true).get());
076  }
077
078  @Test
079  public void testMoveNonDefaultReplica()
080    throws InterruptedException, ExecutionException, IOException {
081    createTableWithDefaultConf(tableName, 3);
082    testMoveNonDefaultReplica(tableName);
083    testMoveNonDefaultReplica(TableName.META_TABLE_NAME);
084  }
085
086  @Test
087  public void testSplitNonDefaultReplica()
088    throws InterruptedException, ExecutionException, IOException {
089    createTableWithDefaultConf(tableName, 3);
090    List<HRegionLocation> locs =
091      ASYNC_CONN.getRegionLocator(tableName).getAllRegionLocations().get();
092    try {
093      admin.splitRegion(locs.get(1).getRegion().getRegionName()).get();
094    } catch (ExecutionException e) {
095      assertThat(e.getCause(), instanceOf(IllegalArgumentException.class));
096    }
097    try {
098      admin.splitRegion(locs.get(2).getRegion().getEncodedNameAsBytes()).get();
099    } catch (ExecutionException e) {
100      assertThat(e.getCause(), instanceOf(IllegalArgumentException.class));
101    }
102  }
103
104  @Test
105  public void testMergeNonDefaultReplicas()
106    throws InterruptedException, ExecutionException, IOException {
107    byte[][] splitRows = new byte[][] { Bytes.toBytes(0) };
108    createTableWithDefaultConf(tableName, 3, splitRows);
109    List<HRegionLocation> locs =
110      ASYNC_CONN.getRegionLocator(tableName).getAllRegionLocations().get();
111    assertEquals(6, locs.size());
112    Map<Integer, List<RegionInfo>> replicaId2RegionInfo = locs.stream()
113      .map(HRegionLocation::getRegion).collect(Collectors.groupingBy(RegionInfo::getReplicaId));
114    List<RegionInfo> replicaOnes = replicaId2RegionInfo.get(1);
115    try {
116      admin
117        .mergeRegions(replicaOnes.get(0).getRegionName(), replicaOnes.get(1).getRegionName(), false)
118        .get();
119    } catch (ExecutionException e) {
120      assertThat(e.getCause(), instanceOf(IllegalArgumentException.class));
121    }
122    List<RegionInfo> replicaTwos = replicaId2RegionInfo.get(2);
123    try {
124      admin
125        .mergeRegions(replicaTwos.get(0).getRegionName(), replicaTwos.get(1).getRegionName(), false)
126        .get();
127    } catch (ExecutionException e) {
128      assertThat(e.getCause(), instanceOf(IllegalArgumentException.class));
129    }
130  }
131
132  @Test
133  public void testCloneTableSchema() throws IOException, InterruptedException, ExecutionException {
134    createTableWithDefaultConf(tableName, 3);
135    admin.cloneTableSchema(tableName, TableName.valueOf(tableName.getNameAsString() + "_new"), true)
136      .get();
137  }
138
139  @Test
140  public void testGetTableRegions() throws InterruptedException, ExecutionException, IOException {
141    List<RegionInfo> metaRegions = admin.getRegions(TableName.META_TABLE_NAME).get();
142    assertEquals(3, metaRegions.size());
143    for (int i = 0; i < 3; i++) {
144      RegionInfo metaRegion = metaRegions.get(i);
145      assertEquals(TableName.META_TABLE_NAME, metaRegion.getTable());
146      assertEquals(i, metaRegion.getReplicaId());
147    }
148    createTableWithDefaultConf(tableName, 3);
149    List<RegionInfo> regions = admin.getRegions(tableName).get();
150    assertEquals(3, metaRegions.size());
151    for (int i = 0; i < 3; i++) {
152      RegionInfo region = regions.get(i);
153      assertEquals(tableName, region.getTable());
154      assertEquals(i, region.getReplicaId());
155    }
156  }
157}