| 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.Date; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.UUID; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.apache.helix.HelixDataAccessor; |
| import org.apache.helix.HelixManager; |
| import org.apache.helix.NotificationContext; |
| import org.apache.helix.PropertyKey; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.ZkTestHelper; |
| import org.apache.helix.ZkUnitTestBase; |
| import org.apache.helix.integration.manager.ClusterControllerManager; |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.messaging.handling.HelixTaskResult; |
| import org.apache.helix.messaging.handling.MessageHandler; |
| import org.apache.helix.messaging.handling.MultiTypeMessageHandlerFactory; |
| import org.apache.helix.model.Message; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestZkSessionExpiry extends ZkUnitTestBase { |
| private final static String DUMMY_MSG_TYPE = "DUMMY"; |
| |
| static class DummyMessageHandler extends MessageHandler { |
| final Set<String> _handledMsgSet; |
| |
| DummyMessageHandler(Message message, NotificationContext context, Set<String> handledMsgSet) { |
| super(message, context); |
| _handledMsgSet = handledMsgSet; |
| } |
| |
| @Override |
| public HelixTaskResult handleMessage() { |
| _handledMsgSet.add(_message.getId()); |
| HelixTaskResult ret = new HelixTaskResult(); |
| ret.setSuccess(true); |
| return ret; |
| } |
| |
| @Override |
| public void onError(Exception e, ErrorCode code, ErrorType type) { |
| // Do nothing |
| } |
| |
| } |
| |
| static class DummyMessageHandlerFactory implements MultiTypeMessageHandlerFactory { |
| final Set<String> _handledMsgSet; |
| |
| DummyMessageHandlerFactory(Set<String> handledMsgSet) { |
| _handledMsgSet = handledMsgSet; |
| } |
| |
| @Override |
| public MessageHandler createHandler(Message message, NotificationContext context) { |
| return new DummyMessageHandler(message, context, _handledMsgSet); |
| } |
| |
| @Override |
| public String getMessageType() { |
| return DUMMY_MSG_TYPE; |
| } |
| |
| @Override |
| public List<String> getMessageTypes() { |
| return ImmutableList.of(DUMMY_MSG_TYPE); |
| } |
| |
| @Override |
| public void reset() { |
| // Do nothing |
| } |
| |
| } |
| |
| @Test |
| public void testMsgHdlrFtyReRegistration() throws Exception { |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| String clusterName = className + "_" + methodName; |
| int n = 2; |
| |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port |
| "localhost", // participant name prefix |
| "TestDB", // resource name prefix |
| 1, // resources |
| 8, // partitions per resource |
| n, // number of nodes |
| 2, // replicas |
| "MasterSlave", true); // do rebalance |
| |
| ClusterControllerManager controller = |
| new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0"); |
| controller.syncStart(); |
| |
| // start participants |
| Set<String> handledMsgSet = new HashSet<>(); |
| MockParticipantManager[] participants = new MockParticipantManager[n]; |
| for (int i = 0; i < n; i++) { |
| String instanceName = "localhost_" + (12918 + i); |
| |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| participants[i].getMessagingService().registerMessageHandlerFactory(DUMMY_MSG_TYPE, |
| new DummyMessageHandlerFactory(handledMsgSet)); |
| participants[i].syncStart(); |
| } |
| |
| boolean result = ClusterStateVerifier.verifyByZkCallback( |
| new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName)); |
| Assert.assertTrue(result); |
| |
| // trigger dummy message handler |
| checkDummyMsgHandler(participants[0], handledMsgSet); |
| |
| // expire localhost_12918 |
| ZkTestHelper.expireSession(participants[0].getZkClient()); |
| result = ClusterStateVerifier.verifyByZkCallback( |
| new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName)); |
| Assert.assertTrue(result); |
| |
| // trigger dummy message handler again |
| checkDummyMsgHandler(participants[0], handledMsgSet); |
| |
| // clean up |
| controller.syncStop(); |
| for (int i = 0; i < n; i++) { |
| participants[i].syncStop(); |
| } |
| |
| deleteCluster(clusterName); |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| |
| /** |
| * trigger dummy message handler and verify it's invoked |
| * @param manager |
| * @param handledMsgSet |
| * @throws Exception |
| */ |
| private static void checkDummyMsgHandler(HelixManager manager, final Set<String> handledMsgSet) |
| throws Exception { |
| |
| final Message aMsg = newMsg(); |
| HelixDataAccessor accessor = manager.getHelixDataAccessor(); |
| PropertyKey.Builder keyBuilder = accessor.keyBuilder(); |
| accessor.setProperty(keyBuilder.message(manager.getInstanceName(), aMsg.getId()), aMsg); |
| boolean result = TestHelper.verify(() -> handledMsgSet.contains(aMsg.getId()), 5 * 1000); |
| Assert.assertTrue(result); |
| } |
| |
| private static Message newMsg() { |
| Message msg = new Message(DUMMY_MSG_TYPE, UUID.randomUUID().toString()); |
| msg.setTgtSessionId("*"); |
| msg.setTgtName("localhost_12918"); |
| return msg; |
| } |
| } |