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.regionserver;
019
020import static junit.framework.TestCase.fail;
021import static org.junit.Assert.assertTrue;
022
023import java.io.IOException;
024import java.util.List;
025import java.util.stream.Collectors;
026import org.apache.hadoop.conf.Configuration;
027import org.apache.hadoop.hbase.DoNotRetryIOException;
028import org.apache.hadoop.hbase.HBaseClassTestRule;
029import org.apache.hadoop.hbase.HBaseTestingUtility;
030import org.apache.hadoop.hbase.TableName;
031import org.apache.hadoop.hbase.client.Admin;
032import org.apache.hadoop.hbase.client.DoNotRetryRegionException;
033import org.apache.hadoop.hbase.client.Put;
034import org.apache.hadoop.hbase.client.RegionInfo;
035import org.apache.hadoop.hbase.client.Table;
036import org.apache.hadoop.hbase.testclassification.MediumTests;
037import org.apache.hadoop.hbase.util.Bytes;
038import org.junit.AfterClass;
039import org.junit.Before;
040import org.junit.BeforeClass;
041import org.junit.ClassRule;
042import org.junit.Rule;
043import org.junit.Test;
044import org.junit.experimental.categories.Category;
045import org.junit.rules.ExpectedException;
046import org.junit.rules.TestName;
047
048/**
049 * Test move fails when table disabled
050 */
051@Category({ MediumTests.class })
052public class TestRegionMove {
053
054  @ClassRule
055  public static final HBaseClassTestRule CLASS_RULE =
056    HBaseClassTestRule.forClass(TestRegionMove.class);
057
058  @Rule
059  public ExpectedException thrown = ExpectedException.none();
060
061  @Rule
062  public TestName name = new TestName();
063  private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
064  public static Configuration CONF;
065  protected static final String F1 = "f1";
066
067  // Test names
068  protected TableName tableName;
069  protected String method;
070
071  @BeforeClass
072  public static void startCluster() throws Exception {
073    TEST_UTIL.startMiniCluster(2);
074  }
075
076  @AfterClass
077  public static void stopCluster() throws Exception {
078    TEST_UTIL.shutdownMiniCluster();
079  }
080
081  @Before
082  public void setup() throws IOException {
083    CONF = TEST_UTIL.getConfiguration();
084    method = name.getMethodName();
085    tableName = TableName.valueOf(method);
086  }
087
088  @Test
089  public void testDisableAndMove() throws Exception {
090    Admin admin = TEST_UTIL.getAdmin();
091
092    // Create a table with more than one region
093    Table t = TEST_UTIL.createMultiRegionTable(tableName, Bytes.toBytes(F1), 10);
094    TEST_UTIL.waitUntilAllRegionsAssigned(tableName);
095
096    // Write an update to each region
097    for (RegionInfo regionInfo : admin.getRegions(tableName)) {
098      byte[] startKey = regionInfo.getStartKey();
099      // The startKey of the first region is "empty", which would throw an error if we try to
100      // Put that.
101      byte[] rowKey = org.apache.hbase.thirdparty.com.google.common.primitives.Bytes
102        .concat(startKey, Bytes.toBytes("1"));
103      Put p = new Put(rowKey);
104      p.addColumn(Bytes.toBytes(F1), Bytes.toBytes("q1"), Bytes.toBytes("value"));
105      t.put(p);
106    }
107
108    // Get a Region which is on the first RS
109    HRegionServer rs1 = TEST_UTIL.getRSForFirstRegionInTable(tableName);
110    HRegionServer rs2 = TEST_UTIL.getOtherRegionServer(rs1);
111    List<RegionInfo> regionsOnRS1ForTable = admin.getRegions(rs1.getServerName()).stream()
112      .filter((regionInfo) -> regionInfo.getTable().equals(tableName)).collect(Collectors.toList());
113    assertTrue("Expected to find at least one region for " + tableName + " on "
114      + rs1.getServerName() + ", but found none", !regionsOnRS1ForTable.isEmpty());
115    final RegionInfo regionToMove = regionsOnRS1ForTable.get(0);
116
117    // Offline the region and then try to move it. Should fail.
118    admin.unassign(regionToMove.getRegionName(), true);
119    try {
120      admin.move(regionToMove.getEncodedNameAsBytes(), rs2.getServerName());
121      fail();
122    } catch (DoNotRetryRegionException e) {
123      // We got expected exception
124    }
125    // Reassign for next stage of test.
126    admin.assign(regionToMove.getRegionName());
127
128    // Disable the table
129    admin.disableTable(tableName);
130
131    try {
132      // Move the region to the other RS -- should fail
133      admin.move(regionToMove.getEncodedNameAsBytes(), rs2.getServerName());
134      fail();
135    } catch (DoNotRetryIOException e) {
136      // We got expected exception
137    }
138  }
139}