| package org.apache.helix.integration.rebalancer.WagedRebalancer; |
| |
| /* |
| * 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.HashMap; |
| import java.util.Map; |
| |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.integration.rebalancer.PartitionMigration.TestPartitionMigrationBase; |
| import org.apache.helix.model.ClusterConfig; |
| import org.apache.helix.model.IdealState; |
| import org.apache.helix.model.InstanceConfig; |
| import org.testng.Assert; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.Test; |
| |
| |
| public class TestWagedExpandCluster extends TestPartitionMigrationBase { |
| Map<String, IdealState> _resourceMap; |
| |
| @BeforeClass |
| public void beforeClass() |
| throws Exception { |
| super.beforeClass(); |
| _resourceMap = createTestDBs(1000000); |
| // TODO remove this sleep after fix https://github.com/apache/helix/issues/526 |
| Thread.sleep(1000); |
| _migrationVerifier = new MigrationStateVerifier(_resourceMap, _manager); |
| } |
| |
| protected Map<String, IdealState> createTestDBs(long delayTime) { |
| Map<String, IdealState> idealStateMap = new HashMap<>(); |
| int i = 0; |
| for (String stateModel : TestStateModels) { |
| String db = "Test-DB-" + i++; |
| createResourceWithWagedRebalance(CLUSTER_NAME, db, stateModel, _PARTITIONS, _replica, |
| _minActiveReplica); |
| _testDBs.add(db); |
| } |
| for (String db : _testDBs) { |
| IdealState is = |
| _gSetupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, db); |
| idealStateMap.put(db, is); |
| } |
| ClusterConfig clusterConfig = _configAccessor.getClusterConfig(CLUSTER_NAME); |
| clusterConfig.setDelayRebalaceEnabled(true); |
| clusterConfig.setRebalanceDelayTime(delayTime); |
| _configAccessor.setClusterConfig(CLUSTER_NAME, clusterConfig); |
| |
| return idealStateMap; |
| } |
| |
| @Test |
| public void testClusterExpansion() |
| throws Exception { |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| |
| _migrationVerifier.start(); |
| |
| // expand cluster by adding instance one by one |
| 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(50); |
| } |
| |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| Assert.assertFalse(_migrationVerifier.hasLessReplica()); |
| Assert.assertFalse(_migrationVerifier.hasMoreReplica()); |
| |
| _migrationVerifier.stop(); |
| } |
| |
| @Test(dependsOnMethods = {"testClusterExpansion"}) |
| public void testClusterExpansionByEnableInstance() |
| throws Exception { |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| |
| _migrationVerifier.reset(); |
| _migrationVerifier.start(); |
| |
| int numNodes = _participants.size(); |
| // add new instances with all disabled |
| for (int i = numNodes; i < numNodes + NUM_NODE; i++) { |
| String storageNodeName = PARTICIPANT_PREFIX + "_" + (START_PORT + i); |
| InstanceConfig config = InstanceConfig.toInstanceConfig(storageNodeName); |
| config.setInstanceEnabled(false); |
| config.getRecord().getSimpleFields() |
| .remove(InstanceConfig.InstanceConfigProperty.HELIX_ENABLED_TIMESTAMP.name()); |
| |
| _gSetupTool.getClusterManagementTool().addInstance(CLUSTER_NAME, config); |
| |
| // start dummy participants |
| MockParticipantManager participant = |
| new MockParticipantManager(ZK_ADDR, CLUSTER_NAME, storageNodeName); |
| participant.syncStart(); |
| _participants.add(participant); |
| } |
| |
| // enable new instance one by one |
| for (int i = numNodes; i < numNodes + NUM_NODE; i++) { |
| String storageNodeName = PARTICIPANT_PREFIX + "_" + (START_PORT + i); |
| _gSetupTool.getClusterManagementTool().enableInstance(CLUSTER_NAME, storageNodeName, true); |
| Thread.sleep(100); |
| } |
| |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| Assert.assertFalse(_migrationVerifier.hasLessReplica()); |
| _migrationVerifier.stop(); |
| } |
| |
| @Test(dependsOnMethods = {"testClusterExpansion", "testClusterExpansionByEnableInstance"}) |
| public void testClusterShrink() |
| throws Exception { |
| ClusterConfig clusterConfig = _configAccessor.getClusterConfig(CLUSTER_NAME); |
| clusterConfig.setDelayRebalaceEnabled(false); |
| clusterConfig.setRebalanceDelayTime(0); |
| _configAccessor.setClusterConfig(CLUSTER_NAME, clusterConfig); |
| |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| |
| _migrationVerifier.reset(); |
| _migrationVerifier.start(); |
| |
| // remove instance one by one |
| for (int i = 0; i < NUM_NODE; i++) { |
| String storageNodeName = PARTICIPANT_PREFIX + "_" + (START_PORT + i); |
| MockParticipantManager participant = _participants.get(i); |
| participant.syncStop(); |
| _gSetupTool.getClusterManagementTool().enableInstance(CLUSTER_NAME, storageNodeName, false); |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| } |
| |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| Assert.assertFalse(_migrationVerifier.hasLessMinActiveReplica()); |
| Assert.assertFalse(_migrationVerifier.hasMoreReplica()); |
| |
| _migrationVerifier.stop(); |
| } |
| } |