| /** |
| * 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.assertTrue; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; |
| import org.apache.hadoop.hbase.client.TableDescriptor; |
| import org.apache.hadoop.hbase.client.TableDescriptorBuilder; |
| import org.apache.hadoop.hbase.master.assignment.AssignmentTestingUtil; |
| import org.apache.hadoop.hbase.net.Address; |
| import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.RSGroupTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.JVMClusterUtil; |
| import org.apache.hadoop.hbase.util.Threads; |
| 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 TestRSGroupsFallback extends TestRSGroupsBase { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestRSGroupsFallback.class); |
| |
| protected static final Logger LOG = LoggerFactory.getLogger(TestRSGroupsFallback.class); |
| |
| private static final String FALLBACK_GROUP = "fallback"; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| Configuration conf = TEST_UTIL.getConfiguration(); |
| conf.setBoolean(RSGroupBasedLoadBalancer.FALLBACK_GROUP_ENABLE_KEY, true); |
| conf.setInt(HConstants.HBASE_BALANCER_MAX_BALANCING, 0); |
| setUpTestBeforeClass(); |
| MASTER.balanceSwitch(true); |
| } |
| |
| @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 testFallback() throws Exception { |
| // add fallback group |
| addGroup(FALLBACK_GROUP, 1); |
| // add test group |
| String groupName = getGroupName(name.getMethodName()); |
| addGroup(groupName, 1); |
| TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes("f")).build()) |
| .setRegionServerGroup(groupName) |
| .build(); |
| ADMIN.createTable(desc, HBaseTestingUtility.KEYS_FOR_HBA_CREATE_TABLE); |
| TEST_UTIL.waitUntilAllRegionsAssigned(tableName); |
| // server of test group crash, regions move to default group |
| crashRsInGroup(groupName); |
| assertRegionsInGroup(tableName, RSGroupInfo.DEFAULT_GROUP); |
| |
| // server of default group crash, regions move to any other group |
| crashRsInGroup(RSGroupInfo.DEFAULT_GROUP); |
| assertRegionsInGroup(tableName, FALLBACK_GROUP); |
| |
| // add a new server to default group, regions move to default group |
| TEST_UTIL.getMiniHBaseCluster().startRegionServerAndWait(60000); |
| assertTrue(MASTER.balance()); |
| assertRegionsInGroup(tableName, RSGroupInfo.DEFAULT_GROUP); |
| |
| // add a new server to test group, regions move back |
| JVMClusterUtil.RegionServerThread t = |
| TEST_UTIL.getMiniHBaseCluster().startRegionServerAndWait(60000); |
| ADMIN.moveServersToRSGroup( |
| Collections.singleton(t.getRegionServer().getServerName().getAddress()), groupName); |
| assertTrue(MASTER.balance()); |
| assertRegionsInGroup(tableName, groupName); |
| |
| TEST_UTIL.deleteTable(tableName); |
| } |
| |
| private void assertRegionsInGroup(TableName table, String group) throws IOException { |
| ProcedureTestingUtility.waitAllProcedures( |
| TEST_UTIL.getMiniHBaseCluster().getMaster().getMasterProcedureExecutor()); |
| RSGroupInfo rsGroup = ADMIN.getRSGroup(group); |
| MASTER.getAssignmentManager().getRegionStates().getRegionsOfTable(table).forEach(region -> { |
| Address regionOnServer = MASTER.getAssignmentManager().getRegionStates() |
| .getRegionAssignments().get(region).getAddress(); |
| assertTrue(rsGroup.getServers().contains(regionOnServer)); |
| }); |
| } |
| |
| private void crashRsInGroup(String groupName) throws Exception { |
| for (Address server : ADMIN.getRSGroup(groupName).getServers()) { |
| AssignmentTestingUtil.crashRs(TEST_UTIL, getServerName(server), true); |
| } |
| Threads.sleep(1000); |
| TEST_UTIL.waitUntilNoRegionsInTransition(60000); |
| } |
| } |