| package org.apache.helix.integration; |
| |
| /* |
| * 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.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.helix.HelixDataAccessor; |
| import org.apache.helix.HelixException; |
| import org.apache.helix.NotificationContext; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.integration.common.ZkStandAloneCMTestBase; |
| import org.apache.helix.manager.zk.ZKHelixDataAccessor; |
| import org.apache.helix.mock.participant.MockMSStateModel; |
| import org.apache.helix.model.ExternalView; |
| import org.apache.helix.model.IdealState; |
| import org.apache.helix.model.Message; |
| import org.apache.helix.model.builder.FullAutoModeISBuilder; |
| import org.apache.helix.participant.statemachine.StateModel; |
| import org.apache.helix.participant.statemachine.StateModelFactory; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestBatchMessageHandling extends ZkStandAloneCMTestBase { |
| |
| @Test |
| public void testSubMessageFailed() throws Exception { |
| TestOnlineOfflineStateModel._numOfSuccessBeforeFailure.set(6); |
| |
| // Let one instance handle all the batch messages. |
| _participants[0].getStateMachineEngine().registerStateModelFactory("OnlineOffline", |
| new TestOnlineOfflineStateModelFactory(), "TestFactory"); |
| for (int i = 1; i < _participants.length; i++) { |
| _participants[i].syncStop(); |
| } |
| |
| HelixDataAccessor dataAccessor = new ZKHelixDataAccessor(CLUSTER_NAME, _baseAccessor); |
| // Check that the Participants really stopped |
| boolean result = TestHelper.verify(() -> { |
| List<String> liveInstances = |
| dataAccessor.getChildNames(dataAccessor.keyBuilder().liveInstances()); |
| for (int i = 1; i < _participants.length; i++) { |
| if (_participants[i].isConnected() |
| || liveInstances.contains(_participants[i].getInstanceName())) { |
| return false; |
| } |
| } |
| return true; |
| }, TestHelper.WAIT_DURATION); |
| Assert.assertTrue(result); |
| |
| // Add 1 db with batch message enabled. Each db has 10 partitions. |
| // So it will have 1 batch message and 10 sub messages. |
| String dbName = "TestDBSubMessageFail"; |
| IdealState idealState = new FullAutoModeISBuilder(dbName).setStateModel("OnlineOffline") |
| .setStateModelFactoryName("TestFactory").setNumPartitions(10).setNumReplica(1).build(); |
| idealState.setBatchMessageMode(true); |
| _gSetupTool.getClusterManagementTool().addResource(CLUSTER_NAME, dbName, idealState); |
| |
| // Check that IdealState has really been added |
| result = TestHelper.verify( |
| () -> dataAccessor.getPropertyStat(dataAccessor.keyBuilder().idealStates(dbName)) != null, |
| TestHelper.WAIT_DURATION); |
| Assert.assertTrue(result); |
| |
| for (int i = 0; i < 5; i++) { |
| IdealState is = |
| _gSetupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, dbName); |
| if (!idealState.equals(is)) { |
| Thread.sleep(1000L); |
| } |
| } |
| _gSetupTool.rebalanceStorageCluster(CLUSTER_NAME, dbName, 1); |
| Assert.assertTrue(_clusterVerifier.verifyByPolling()); |
| Thread.sleep(2000L); |
| |
| int numOfOnlines = 0; |
| int numOfErrors = 0; |
| ExternalView externalView = |
| _gSetupTool.getClusterManagementTool().getResourceExternalView(CLUSTER_NAME, dbName); |
| for (String partition : externalView.getPartitionSet()) { |
| if (externalView.getStateMap(partition).values().contains("ONLINE")) { |
| numOfOnlines++; |
| } |
| if (externalView.getStateMap(partition).values().contains("ERROR")) { |
| numOfErrors++; |
| } |
| } |
| Assert.assertEquals(numOfErrors, 4); |
| Assert.assertEquals(numOfOnlines, 6); |
| } |
| |
| public static class TestOnlineOfflineStateModelFactory |
| extends StateModelFactory<TestOnlineOfflineStateModel> { |
| @Override |
| public TestOnlineOfflineStateModel createNewStateModel(String resourceName, |
| String stateUnitKey) { |
| return new TestOnlineOfflineStateModel(); |
| } |
| } |
| |
| public static class TestOnlineOfflineStateModel extends StateModel { |
| private static Logger LOG = LoggerFactory.getLogger(MockMSStateModel.class); |
| static AtomicInteger _numOfSuccessBeforeFailure = new AtomicInteger(); |
| |
| public void onBecomeOnlineFromOffline(Message message, NotificationContext context) { |
| if (_numOfSuccessBeforeFailure.getAndDecrement() > 0) { |
| LOG.info("State transition from Offline to Online"); |
| return; |
| } |
| throw new HelixException("Number of Success reached"); |
| } |
| |
| public void onBecomeOfflineFromOnline(Message message, NotificationContext context) { |
| LOG.info("State transition from Online to Offline"); |
| } |
| |
| public void onBecomeDroppedFromOffline(Message message, NotificationContext context) { |
| LOG.info("State transition from Offline to Dropped"); |
| } |
| } |
| } |