| package org.apache.helix.integration.rebalancer.CrushRebalancers; |
| |
| /* |
| * 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.ArrayList; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.helix.ConfigAccessor; |
| import org.apache.helix.common.ZkTestBase; |
| import org.apache.helix.controller.rebalancer.strategy.CrushEdRebalanceStrategy; |
| import org.apache.helix.controller.rebalancer.strategy.CrushRebalanceStrategy; |
| import org.apache.helix.controller.rebalancer.strategy.MultiRoundCrushRebalanceStrategy; |
| import org.apache.helix.integration.manager.ClusterControllerManager; |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.model.BuiltInStateModelDefinitions; |
| import org.apache.helix.model.ClusterConfig; |
| import org.apache.helix.model.ExternalView; |
| import org.apache.helix.model.IdealState; |
| import org.apache.helix.model.InstanceConfig; |
| import org.apache.helix.tools.ClusterVerifiers.HelixClusterVerifier; |
| import org.apache.helix.tools.ClusterVerifiers.StrictMatchExternalViewVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.AfterClass; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Test; |
| |
| public class TestNodeSwap extends ZkTestBase { |
| final int NUM_NODE = 6; |
| protected static final int START_PORT = 12918; |
| protected static final int _PARTITIONS = 20; |
| |
| protected final String CLASS_NAME = getShortClassName(); |
| protected final String CLUSTER_NAME = CLUSTER_PREFIX + "_" + CLASS_NAME; |
| protected ClusterControllerManager _controller; |
| |
| List<MockParticipantManager> _participants = new ArrayList<>(); |
| Set<String> _allDBs = new HashSet<>(); |
| int _replica = 3; |
| |
| String[] _testModels = { |
| BuiltInStateModelDefinitions.OnlineOffline.name(), |
| BuiltInStateModelDefinitions.MasterSlave.name(), |
| BuiltInStateModelDefinitions.LeaderStandby.name() |
| }; |
| |
| @BeforeClass |
| public void beforeClass() throws Exception { |
| System.out.println("START " + CLASS_NAME + " at " + new Date(System.currentTimeMillis())); |
| |
| _gSetupTool.addCluster(CLUSTER_NAME, true); |
| |
| ConfigAccessor configAccessor = new ConfigAccessor(_gZkClient); |
| ClusterConfig clusterConfig = configAccessor.getClusterConfig(CLUSTER_NAME); |
| clusterConfig.setTopology("/zone/instance"); |
| clusterConfig.setFaultZoneType("zone"); |
| configAccessor.setClusterConfig(CLUSTER_NAME, clusterConfig); |
| |
| Set<String> nodes = new HashSet<>(); |
| for (int i = 0; i < NUM_NODE; i++) { |
| String storageNodeName = PARTICIPANT_PREFIX + "_" + (START_PORT + i); |
| _gSetupTool.addInstanceToCluster(CLUSTER_NAME, storageNodeName); |
| String zone = "zone-" + i % 3; |
| String domain = String.format("zone=%s,instance=%s", zone, storageNodeName); |
| |
| InstanceConfig instanceConfig = |
| configAccessor.getInstanceConfig(CLUSTER_NAME, storageNodeName); |
| instanceConfig.setDomain(domain); |
| _gSetupTool.getClusterManagementTool().setInstanceConfig(CLUSTER_NAME, storageNodeName, |
| instanceConfig); |
| nodes.add(storageNodeName); |
| } |
| |
| // start dummy participants |
| for (String node : nodes) { |
| MockParticipantManager participant = new MockParticipantManager(ZK_ADDR, CLUSTER_NAME, node); |
| participant.syncStart(); |
| _participants.add(participant); |
| } |
| |
| // start controller |
| String controllerName = CONTROLLER_PREFIX + "_0"; |
| _controller = new ClusterControllerManager(ZK_ADDR, CLUSTER_NAME, controllerName); |
| _controller.syncStart(); |
| |
| enablePersistBestPossibleAssignment(_gZkClient, CLUSTER_NAME, true); |
| enableTopologyAwareRebalance(_gZkClient, CLUSTER_NAME, true); |
| } |
| |
| @AfterClass |
| public void afterClass() throws Exception { |
| _controller.syncStop(); |
| for (MockParticipantManager p : _participants) { |
| p.syncStop(); |
| } |
| deleteCluster(CLUSTER_NAME); |
| } |
| |
| @DataProvider(name = "rebalanceStrategies") |
| public static Object[][] rebalanceStrategies() { |
| return new String[][] { |
| { |
| "CrushRebalanceStrategy", CrushRebalanceStrategy.class.getName() |
| }, { |
| "MultiRoundCrushRebalanceStrategy", MultiRoundCrushRebalanceStrategy.class.getName() |
| }, { |
| "CrushEdRebalanceStrategy", CrushEdRebalanceStrategy.class.getName() |
| } |
| }; |
| } |
| |
| @Test(dataProvider = "rebalanceStrategies") |
| public void testNodeSwap(String rebalanceStrategyName, String rebalanceStrategyClass) |
| throws Exception { |
| System.out.println("Test testNodeSwap for " + rebalanceStrategyName); |
| |
| int i = 0; |
| for (String stateModel : _testModels) { |
| String db = "Test-DB-" + rebalanceStrategyName + "-" + i++; |
| _gSetupTool.addResourceToCluster(CLUSTER_NAME, db, _PARTITIONS, stateModel, |
| IdealState.RebalanceMode.FULL_AUTO + "", rebalanceStrategyClass); |
| _gSetupTool.rebalanceStorageCluster(CLUSTER_NAME, db, _replica); |
| _allDBs.add(db); |
| } |
| Thread.sleep(1000); |
| |
| HelixClusterVerifier _clusterVerifier = |
| new StrictMatchExternalViewVerifier.Builder(CLUSTER_NAME).setZkAddr(ZK_ADDR) |
| .setResources(_allDBs).build(); |
| Assert.assertTrue(_clusterVerifier.verify(5000)); |
| |
| Map<String, ExternalView> record = new HashMap<>(); |
| for (String db : _allDBs) { |
| record.put(db, |
| _gSetupTool.getClusterManagementTool().getResourceExternalView(CLUSTER_NAME, db)); |
| } |
| |
| // swap a node and rebalance for new distribution |
| ConfigAccessor configAccessor = new ConfigAccessor(_gZkClient); |
| |
| // 1. disable and remove an old node |
| MockParticipantManager oldParticipant = _participants.get(0); |
| String oldParticipantName = oldParticipant.getInstanceName(); |
| |
| final InstanceConfig instanceConfig = |
| _gSetupTool.getClusterManagementTool().getInstanceConfig(CLUSTER_NAME, oldParticipantName); |
| // disable the node first |
| instanceConfig.setInstanceEnabled(false); |
| _gSetupTool.getClusterManagementTool().setInstanceConfig(CLUSTER_NAME, oldParticipantName, |
| instanceConfig); |
| Assert.assertTrue(_clusterVerifier.verify(10000)); |
| |
| // then remove it from topology |
| oldParticipant.syncStop(); |
| Thread.sleep(2000); |
| _gSetupTool.getClusterManagementTool().dropInstance(CLUSTER_NAME, instanceConfig); |
| |
| // 2. create new participant with same topology |
| String newParticipantName = "RandomParticipant-" + rebalanceStrategyName + "_" + START_PORT; |
| _gSetupTool.addInstanceToCluster(CLUSTER_NAME, newParticipantName); |
| InstanceConfig newConfig = configAccessor.getInstanceConfig(CLUSTER_NAME, newParticipantName); |
| newConfig.setDomain(instanceConfig.getDomainAsString()); |
| _gSetupTool.getClusterManagementTool().setInstanceConfig(CLUSTER_NAME, newParticipantName, |
| newConfig); |
| |
| MockParticipantManager participant = |
| new MockParticipantManager(ZK_ADDR, CLUSTER_NAME, newParticipantName); |
| participant.syncStart(); |
| _participants.add(0, participant); |
| Thread.sleep(2000); |
| |
| _clusterVerifier = new StrictMatchExternalViewVerifier.Builder(CLUSTER_NAME).setZkAddr(ZK_ADDR) |
| .setResources(_allDBs).build(); |
| Assert.assertTrue(_clusterVerifier.verify(5000)); |
| |
| for (String db : _allDBs) { |
| ExternalView ev = |
| _gSetupTool.getClusterManagementTool().getResourceExternalView(CLUSTER_NAME, db); |
| ExternalView oldEv = record.get(db); |
| for (String partition : ev.getPartitionSet()) { |
| Map<String, String> stateMap = ev.getStateMap(partition); |
| Map<String, String> oldStateMap = oldEv.getStateMap(partition); |
| Assert.assertTrue(oldStateMap != null && stateMap != null); |
| for (String instance : stateMap.keySet()) { |
| String topoName = instance; |
| if (instance.equals(newParticipantName)) { |
| topoName = oldParticipantName; |
| } |
| Assert.assertEquals(stateMap.get(instance), oldStateMap.get(topoName)); |
| } |
| } |
| } |
| } |
| } |