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;
026
027import org.apache.hadoop.conf.Configuration;
028import org.apache.hadoop.hbase.HBaseClassTestRule;
029import org.apache.hadoop.hbase.HBaseTestingUtility;
030import org.apache.hadoop.hbase.TableName;
031import org.apache.hadoop.hbase.TableNotEnabledException;
032import org.apache.hadoop.hbase.client.Admin;
033import org.apache.hadoop.hbase.client.DoNotRetryRegionException;
034import org.apache.hadoop.hbase.client.Put;
035import org.apache.hadoop.hbase.client.RegionInfo;
036import org.apache.hadoop.hbase.client.Table;
037import org.apache.hadoop.hbase.testclassification.LargeTests;
038import org.apache.hadoop.hbase.util.Bytes;
039import org.junit.AfterClass;
040import org.junit.Before;
041import org.junit.BeforeClass;
042import org.junit.ClassRule;
043import org.junit.Rule;
044import org.junit.Test;
045import org.junit.experimental.categories.Category;
046import org.junit.rules.ExpectedException;
047import org.junit.rules.TestName;
048
049/**
050 * Test move fails when table disabled
051 */
052@Category({LargeTests.class})
053public class TestRegionMove {
054
055  @ClassRule
056  public static final HBaseClassTestRule CLASS_RULE =
057      HBaseClassTestRule.forClass(TestRegionMove.class);
058
059  @Rule
060  public ExpectedException thrown = ExpectedException.none();
061
062  @Rule
063  public TestName name = new TestName();
064  private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
065  public static Configuration CONF ;
066  protected static final String F1 = "f1";
067
068  // Test names
069  protected TableName tableName;
070  protected String method;
071
072  @BeforeClass
073  public static void startCluster() throws Exception {
074    TEST_UTIL.startMiniCluster(2);
075  }
076
077  @AfterClass
078  public static void stopCluster() throws Exception {
079    TEST_UTIL.shutdownMiniCluster();
080  }
081
082  @Before
083  public void setup() throws IOException {
084    CONF = TEST_UTIL.getConfiguration();
085    method = name.getMethodName();
086    tableName = TableName.valueOf(method);
087  }
088
089  @Test
090  public void testDisableAndMove() throws Exception {
091    Admin admin = TEST_UTIL.getAdmin();
092
093    // Create a table with more than one region
094    Table t = TEST_UTIL.createMultiRegionTable(tableName, Bytes.toBytes(F1), 10);
095    TEST_UTIL.waitUntilAllRegionsAssigned(tableName);
096
097    // Write an update to each region
098    for (RegionInfo regionInfo : admin.getRegions(tableName)) {
099      byte[] startKey = regionInfo.getStartKey();
100      // The startKey of the first region is "empty", which would throw an error if we try to
101      // Put that.
102      byte[] rowKey = org.apache.hbase.thirdparty.com.google.common.primitives.Bytes.concat(
103          startKey, Bytes.toBytes("1"));
104      Put p = new Put(rowKey);
105      p.addColumn(Bytes.toBytes(F1), Bytes.toBytes("q1"), Bytes.toBytes("value"));
106      t.put(p);
107    }
108
109    // Get a Region which is on the first RS
110    HRegionServer rs1 = TEST_UTIL.getRSForFirstRegionInTable(tableName);
111    HRegionServer rs2 = TEST_UTIL.getOtherRegionServer(rs1);
112    List<RegionInfo> regionsOnRS1ForTable = admin.getRegions(rs1.getServerName()).stream()
113        .filter((regionInfo) -> regionInfo.getTable().equals(tableName))
114        .collect(Collectors.toList());
115    assertTrue(
116        "Expected to find at least one region for " + tableName + " on " + rs1.getServerName()
117        + ", but found none", !regionsOnRS1ForTable.isEmpty());
118    final RegionInfo regionToMove = regionsOnRS1ForTable.get(0);
119
120    // Offline the region and then try to move it. Should fail.
121    admin.unassign(regionToMove.getRegionName(), true);
122    try {
123      admin.move(regionToMove.getEncodedNameAsBytes(),
124          Bytes.toBytes(rs2.getServerName().toString()));
125      fail();
126    } catch (DoNotRetryRegionException e) {
127      // We got expected exception
128    }
129    // Reassign for next stage of test.
130    admin.assign(regionToMove.getRegionName());
131
132    // Disable the table
133    admin.disableTable(tableName);
134
135    // We except a DNRIOE when we try to move a region which isn't open.
136    thrown.expect(TableNotEnabledException.class);
137    thrown.expectMessage(t.getName().toString());
138
139    // Move the region to the other RS -- should fail
140    admin.move(regionToMove.getEncodedNameAsBytes(), Bytes.toBytes(rs2.getServerName().toString()));
141  }
142}