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.ArrayList; 024import java.util.HashMap; 025import java.util.List; 026import java.util.Map; 027 028import org.apache.hadoop.hbase.HBaseClassTestRule; 029import org.apache.hadoop.hbase.HBaseTestingUtility; 030import org.apache.hadoop.hbase.HConstants; 031import org.apache.hadoop.hbase.ServerName; 032import org.apache.hadoop.hbase.TableName; 033import org.apache.hadoop.hbase.client.RegionInfo; 034import org.apache.hadoop.hbase.master.assignment.AssignmentManager; 035import org.apache.hadoop.hbase.master.assignment.RegionStates; 036import org.apache.hadoop.hbase.testclassification.LargeTests; 037import org.apache.hadoop.hbase.testclassification.MasterTests; 038import org.junit.After; 039import org.junit.Before; 040import org.junit.ClassRule; 041import org.junit.Rule; 042import org.junit.Test; 043import org.junit.experimental.categories.Category; 044import org.junit.rules.TestName; 045 046/** 047 * Test balancer with disabled table 048 */ 049@Category({ MasterTests.class, LargeTests.class }) 050public class TestBalancer { 051 052 @ClassRule 053 public static final HBaseClassTestRule CLASS_RULE = 054 HBaseClassTestRule.forClass(TestBalancer.class); 055 056 private final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); 057 058 @Rule 059 public TestName name = new TestName(); 060 061 @Before 062 public void before() throws Exception { 063 TEST_UTIL.startMiniCluster(); 064 } 065 066 @After 067 public void after() throws Exception { 068 TEST_UTIL.shutdownMiniCluster(); 069 } 070 071 @Test 072 public void testAssignmentsForBalancer() throws Exception { 073 final TableName tableName = TableName.valueOf(name.getMethodName()); 074 TEST_UTIL.createMultiRegionTable(tableName, HConstants.CATALOG_FAMILY, 10); 075 // disable table 076 final TableName disableTableName = TableName.valueOf("testDisableTable"); 077 TEST_UTIL.createMultiRegionTable(disableTableName, HConstants.CATALOG_FAMILY, 10); 078 TEST_UTIL.getAdmin().disableTable(disableTableName); 079 080 HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster(); 081 AssignmentManager assignmentManager = master.getAssignmentManager(); 082 RegionStates regionStates = assignmentManager.getRegionStates(); 083 ServerName sn1 = ServerName.parseServerName("asf903.gq1.ygridcore.net,52690,1517835491385"); 084 regionStates.getOrCreateServer(sn1); 085 086 TableStateManager tableStateManager = master.getTableStateManager(); 087 ServerManager serverManager = master.getServerManager(); 088 Map<TableName, Map<ServerName, List<RegionInfo>>> assignments = 089 assignmentManager.getRegionStates() 090 .getAssignmentsForBalancer(tableStateManager, serverManager.getOnlineServersList(), true); 091 assertFalse(assignments.containsKey(disableTableName)); 092 assertTrue(assignments.containsKey(tableName)); 093 assertFalse(assignments.get(tableName).containsKey(sn1)); 094 095 assignments = assignmentManager.getRegionStates() 096 .getAssignmentsForBalancer(tableStateManager, serverManager.getOnlineServersList(), false); 097 Map<TableName, Map<ServerName, List<RegionInfo>>> tableNameMap = new HashMap<>(); 098 for (Map.Entry<ServerName, List<RegionInfo>> entry : assignments 099 .get(HConstants.ENSEMBLE_TABLE_NAME).entrySet()) { 100 final ServerName serverName = entry.getKey(); 101 for (RegionInfo regionInfo : entry.getValue()) { 102 Map<ServerName, List<RegionInfo>> tableResult = 103 tableNameMap.computeIfAbsent(regionInfo.getTable(), t -> new HashMap<>()); 104 List<RegionInfo> serverResult = 105 tableResult.computeIfAbsent(serverName, s -> new ArrayList<>()); 106 serverResult.add(regionInfo); 107 } 108 } 109 assertFalse(tableNameMap.containsKey(disableTableName)); 110 assertTrue(tableNameMap.containsKey(tableName)); 111 assertFalse(tableNameMap.get(tableName).containsKey(sn1)); 112 } 113}