| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hbase.rsgroup; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.NamespaceDescriptor; |
| import org.apache.hadoop.hbase.ServerName; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.Waiter; |
| import org.apache.hadoop.hbase.Waiter.Predicate; |
| import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.client.TableDescriptor; |
| import org.apache.hadoop.hbase.client.TableDescriptorBuilder; |
| import org.apache.hadoop.hbase.master.HMaster; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.RSGroupTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Category({ RSGroupTests.class, MediumTests.class }) |
| public class TestRSGroupsBalance extends TestRSGroupsBase { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestRSGroupsBalance.class); |
| |
| protected static final Logger LOG = LoggerFactory.getLogger(TestRSGroupsBalance.class); |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| setUpTestBeforeClass(); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| tearDownAfterClass(); |
| } |
| |
| @Before |
| public void beforeMethod() throws Exception { |
| setUpBeforeMethod(); |
| } |
| |
| @After |
| public void afterMethod() throws Exception { |
| tearDownAfterMethod(); |
| } |
| |
| @Test |
| public void testGroupBalance() throws Exception { |
| LOG.info(name.getMethodName()); |
| String newGroupName = getGroupName(name.getMethodName()); |
| addGroup(newGroupName, 3); |
| |
| final TableName tableName = |
| TableName.valueOf(TABLE_PREFIX + "_ns", getNameWithoutIndex(name.getMethodName())); |
| ADMIN.createNamespace(NamespaceDescriptor.create(tableName.getNamespaceAsString()) |
| .addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, newGroupName).build()); |
| final TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of("f")).build(); |
| byte[] startKey = Bytes.toBytes("aaaaa"); |
| byte[] endKey = Bytes.toBytes("zzzzz"); |
| ADMIN.createTable(desc, startKey, endKey, 6); |
| TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() { |
| @Override |
| public boolean evaluate() throws Exception { |
| List<String> regions = getTableRegionMap().get(tableName); |
| if (regions == null) { |
| return false; |
| } |
| return regions.size() >= 6; |
| } |
| }); |
| |
| // make assignment uneven, move all regions to one server |
| Map<ServerName, List<String>> assignMap = getTableServerRegionMap().get(tableName); |
| final ServerName first = assignMap.entrySet().iterator().next().getKey(); |
| for (RegionInfo region : ADMIN.getRegions(tableName)) { |
| if (!assignMap.get(first).contains(region.getRegionNameAsString())) { |
| ADMIN.move(region.getEncodedNameAsBytes(), first); |
| } |
| } |
| TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() { |
| @Override |
| public boolean evaluate() throws Exception { |
| Map<ServerName, List<String>> map = getTableServerRegionMap().get(tableName); |
| if (map == null) { |
| return true; |
| } |
| List<String> regions = map.get(first); |
| if (regions == null) { |
| return true; |
| } |
| return regions.size() >= 6; |
| } |
| }); |
| |
| // balance the other group and make sure it doesn't affect the new group |
| ADMIN.balancerSwitch(true, true); |
| ADMIN.balanceRSGroup(RSGroupInfo.DEFAULT_GROUP); |
| assertEquals(6, getTableServerRegionMap().get(tableName).get(first).size()); |
| |
| // disable balance, balancer will not be run and return false |
| ADMIN.balancerSwitch(false, true); |
| assertFalse(ADMIN.balanceRSGroup(newGroupName)); |
| assertEquals(6, getTableServerRegionMap().get(tableName).get(first).size()); |
| |
| // enable balance |
| ADMIN.balancerSwitch(true, true); |
| ADMIN.balanceRSGroup(newGroupName); |
| TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() { |
| @Override |
| public boolean evaluate() throws Exception { |
| for (List<String> regions : getTableServerRegionMap().get(tableName).values()) { |
| if (2 != regions.size()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| }); |
| ADMIN.balancerSwitch(false, true); |
| } |
| |
| @Test |
| public void testMisplacedRegions() throws Exception { |
| String namespace = TABLE_PREFIX + "_" + getNameWithoutIndex(name.getMethodName()); |
| TEST_UTIL.getAdmin().createNamespace(NamespaceDescriptor.create(namespace).build()); |
| final TableName tableName = |
| TableName.valueOf(namespace, TABLE_PREFIX + "_" + getNameWithoutIndex(name.getMethodName())); |
| |
| final RSGroupInfo rsGroupInfo = addGroup(getGroupName(name.getMethodName()), 1); |
| |
| TEST_UTIL.createMultiRegionTable(tableName, new byte[] { 'f' }, 15); |
| TEST_UTIL.waitUntilAllRegionsAssigned(tableName); |
| TEST_UTIL.getAdmin().modifyNamespace(NamespaceDescriptor.create(namespace) |
| .addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, rsGroupInfo.getName()).build()); |
| |
| ADMIN.balancerSwitch(true, true); |
| assertTrue(ADMIN.balanceRSGroup(rsGroupInfo.getName())); |
| ADMIN.balancerSwitch(false, true); |
| assertTrue(OBSERVER.preBalanceRSGroupCalled); |
| assertTrue(OBSERVER.postBalanceRSGroupCalled); |
| |
| TEST_UTIL.waitFor(60000, new Predicate<Exception>() { |
| @Override |
| public boolean evaluate() throws Exception { |
| ServerName serverName = |
| ServerName.valueOf(rsGroupInfo.getServers().iterator().next().toString(), 1); |
| return ADMIN.getConnection().getAdmin().getRegions(serverName).size() == 15; |
| } |
| }); |
| } |
| |
| @Test public void testGetRSGroupAssignmentsByTable() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| TEST_UTIL.createMultiRegionTable(tableName, HConstants.CATALOG_FAMILY, 10); |
| // disable table |
| final TableName disableTableName = TableName.valueOf("testDisableTable"); |
| TEST_UTIL.createMultiRegionTable(disableTableName, HConstants.CATALOG_FAMILY, 10); |
| TEST_UTIL.getAdmin().disableTable(disableTableName); |
| |
| HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster(); |
| RSGroupInfoManagerImpl gm = (RSGroupInfoManagerImpl) master.getRSGroupInfoManager(); |
| Map<TableName, Map<ServerName, List<RegionInfo>>> assignments = |
| gm.getRSGroupAssignmentsByTable(master.getTableStateManager(), RSGroupInfo.DEFAULT_GROUP); |
| assertFalse(assignments.containsKey(disableTableName)); |
| assertTrue(assignments.containsKey(tableName)); |
| } |
| } |