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.master;
019
020import static org.junit.Assert.assertFalse;
021import static org.junit.Assert.assertTrue;
022
023import java.util.List;
024import java.util.Map;
025
026import org.apache.hadoop.hbase.HBaseClassTestRule;
027import org.apache.hadoop.hbase.HBaseTestingUtil;
028import org.apache.hadoop.hbase.HConstants;
029import org.apache.hadoop.hbase.ServerName;
030import org.apache.hadoop.hbase.TableName;
031import org.apache.hadoop.hbase.client.RegionInfo;
032import org.apache.hadoop.hbase.master.assignment.AssignmentManager;
033import org.apache.hadoop.hbase.master.assignment.RegionStates;
034import org.apache.hadoop.hbase.testclassification.LargeTests;
035import org.apache.hadoop.hbase.testclassification.MasterTests;
036import org.junit.After;
037import org.junit.Before;
038import org.junit.ClassRule;
039import org.junit.Rule;
040import org.junit.Test;
041import org.junit.experimental.categories.Category;
042import org.junit.rules.TestName;
043
044/**
045 * Test balancer with disabled table
046 */
047@Category({ MasterTests.class, LargeTests.class })
048public class TestBalancer {
049
050  @ClassRule
051  public static final HBaseClassTestRule CLASS_RULE =
052      HBaseClassTestRule.forClass(TestBalancer.class);
053
054  private final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
055
056  @Rule
057  public TestName name = new TestName();
058
059  @Before
060  public void before() throws Exception {
061    TEST_UTIL.startMiniCluster();
062  }
063
064  @After
065  public void after() throws Exception {
066    TEST_UTIL.shutdownMiniCluster();
067  }
068
069  @Test
070  public void testAssignmentsForBalancer() throws Exception {
071    final TableName tableName = TableName.valueOf(name.getMethodName());
072    TEST_UTIL.createMultiRegionTable(tableName, HConstants.CATALOG_FAMILY, 10);
073    // disable table
074    final TableName disableTableName = TableName.valueOf("testDisableTable");
075    TEST_UTIL.createMultiRegionTable(disableTableName, HConstants.CATALOG_FAMILY, 10);
076    TEST_UTIL.getAdmin().disableTable(disableTableName);
077
078    HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
079    AssignmentManager assignmentManager = master.getAssignmentManager();
080    RegionStates regionStates = assignmentManager.getRegionStates();
081    ServerName sn1 = ServerName.parseServerName("asf903.gq1.ygridcore.net,52690,1517835491385");
082    regionStates.getOrCreateServer(sn1);
083
084    TableStateManager tableStateManager = master.getTableStateManager();
085    ServerManager serverManager = master.getServerManager();
086    Map<TableName, Map<ServerName, List<RegionInfo>>> assignments =
087      assignmentManager.getRegionStates()
088        .getAssignmentsForBalancer(tableStateManager, serverManager.getOnlineServersList());
089    assertFalse(assignments.containsKey(disableTableName));
090    assertTrue(assignments.containsKey(tableName));
091    assertFalse(assignments.get(tableName).containsKey(sn1));
092  }
093}