| package org.apache.helix.integration.rebalancer.PartitionMigration; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.Collections; |
| |
| import org.apache.helix.ConfigAccessor; |
| import org.apache.helix.controller.rebalancer.strategy.CrushRebalanceStrategy; |
| import org.apache.helix.controller.rebalancer.waged.WagedRebalancer; |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.model.BuiltInStateModelDefinitions; |
| import org.apache.helix.model.ClusterConfig; |
| import org.apache.helix.model.IdealState; |
| import org.apache.helix.tools.ClusterVerifiers.StrictMatchExternalViewVerifier; |
| import org.apache.helix.tools.ClusterVerifiers.ZkHelixClusterVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Test; |
| |
| public class TestWagedRebalancerMigration extends TestPartitionMigrationBase { |
| ConfigAccessor _configAccessor; |
| |
| @BeforeClass |
| public void beforeClass() throws Exception { |
| super.beforeClass(); |
| _configAccessor = new ConfigAccessor(_gZkClient); |
| } |
| |
| @DataProvider(name = "stateModels") |
| public static Object[][] stateModels() { |
| return new Object[][] { { BuiltInStateModelDefinitions.MasterSlave.name(), true }, |
| { BuiltInStateModelDefinitions.OnlineOffline.name(), true }, |
| { BuiltInStateModelDefinitions.LeaderStandby.name(), true }, |
| { BuiltInStateModelDefinitions.MasterSlave.name(), false }, |
| { BuiltInStateModelDefinitions.OnlineOffline.name(), false }, |
| { BuiltInStateModelDefinitions.LeaderStandby.name(), false }, |
| }; |
| } |
| |
| // TODO check the movements in between |
| @Test(dataProvider = "stateModels") |
| public void testMigrateToWagedRebalancerWhileExpandCluster(String stateModel, |
| boolean delayEnabled) throws Exception { |
| String db = "Test-DB-" + stateModel; |
| if (delayEnabled) { |
| createResourceWithDelayedRebalance(CLUSTER_NAME, db, stateModel, _PARTITIONS, _replica, |
| _replica - 1, 3000000, CrushRebalanceStrategy.class.getName()); |
| } else { |
| createResourceWithDelayedRebalance(CLUSTER_NAME, db, stateModel, _PARTITIONS, _replica, |
| _replica, 0, CrushRebalanceStrategy.class.getName()); |
| } |
| IdealState idealState = |
| _gSetupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, db); |
| ClusterConfig config = _configAccessor.getClusterConfig(CLUSTER_NAME); |
| config.setDelayRebalaceEnabled(delayEnabled); |
| config.setRebalanceDelayTime(3000000); |
| _configAccessor.setClusterConfig(CLUSTER_NAME, config); |
| |
| // add new instance to the cluster |
| int numNodes = _participants.size(); |
| for (int i = numNodes; i < numNodes + NUM_NODE; i++) { |
| String storageNodeName = PARTICIPANT_PREFIX + "_" + (START_PORT + i); |
| MockParticipantManager participant = createAndStartParticipant(storageNodeName); |
| _participants.add(participant); |
| Thread.sleep(100); |
| } |
| Thread.sleep(2000); |
| ZkHelixClusterVerifier clusterVerifier = |
| new StrictMatchExternalViewVerifier.Builder(CLUSTER_NAME) |
| .setResources(Collections.singleton(db)).setZkAddr(ZK_ADDR).build(); |
| Assert.assertTrue(clusterVerifier.verifyByPolling()); |
| |
| _migrationVerifier = |
| new MigrationStateVerifier(Collections.singletonMap(db, idealState), _manager); |
| |
| _migrationVerifier.reset(); |
| _migrationVerifier.start(); |
| |
| IdealState currentIdealState = _gSetupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, db); |
| currentIdealState.setRebalancerClassName(WagedRebalancer.class.getName()); |
| _gSetupTool.getClusterManagementTool().setResourceIdealState(CLUSTER_NAME, db, currentIdealState); |
| Thread.sleep(2000); |
| Assert.assertTrue(clusterVerifier.verifyByPolling()); |
| |
| Assert.assertFalse(_migrationVerifier.hasLessReplica()); |
| Assert.assertFalse(_migrationVerifier.hasMoreReplica()); |
| |
| _migrationVerifier.stop(); |
| } |
| } |