| package org.apache.helix.integration.messaging; |
| |
| /* |
| * 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.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import org.apache.helix.HelixAdmin; |
| import org.apache.helix.PropertyPathBuilder; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.zookeeper.datamodel.ZNRecord; |
| import org.apache.helix.common.ZkTestBase; |
| import org.apache.helix.integration.manager.ClusterControllerManager; |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.manager.zk.ZKHelixAdmin; |
| import org.apache.helix.manager.zk.ZKHelixDataAccessor; |
| import org.apache.helix.manager.zk.ZkBaseDataAccessor; |
| import org.apache.helix.model.ClusterConstraints.ConstraintType; |
| import org.apache.helix.model.Message; |
| import org.apache.helix.model.builder.ConstraintItemBuilder; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier; |
| import org.apache.helix.tools.ClusterStateVerifier.MasterNbInExtViewVerifier; |
| import org.apache.helix.zookeeper.zkclient.IZkChildListener; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestMessageThrottle extends ZkTestBase { |
| @Test() |
| public void testMessageThrottle() throws Exception { |
| // Logger.getRootLogger().setLevel(Level.INFO); |
| |
| String clusterName = getShortClassName(); |
| MockParticipantManager[] participants = new MockParticipantManager[5]; |
| |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant start |
| // port |
| "localhost", // participant name prefix |
| "TestDB", // resource name prefix |
| 1, // resources |
| 10, // partitions per resource |
| 5, // number of nodes |
| 3, // replicas |
| "MasterSlave", true); // do rebalance |
| |
| // setup message constraint |
| // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=.*,CONSTRAINT_VALUE=1"; |
| HelixAdmin admin = new ZKHelixAdmin(_gZkClient); |
| ConstraintItemBuilder builder = new ConstraintItemBuilder(); |
| builder.addConstraintAttribute("MESSAGE_TYPE", "STATE_TRANSITION") |
| .addConstraintAttribute("INSTANCE", ".*").addConstraintAttribute("CONSTRAINT_VALUE", "1"); |
| |
| // Map<String, String> constraints = new TreeMap<String, String>(); |
| // constraints.put("MESSAGE_TYPE", "STATE_TRANSITION"); |
| // // constraints.put("TRANSITION", "OFFLINE-SLAVE"); |
| // constraints.put("CONSTRAINT_VALUE", "1"); |
| // constraints.put("INSTANCE", ".*"); |
| admin.setConstraint(clusterName, ConstraintType.MESSAGE_CONSTRAINT, "constraint1", |
| builder.build()); |
| |
| final ZKHelixDataAccessor accessor = |
| new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient)); |
| |
| // make sure we never see more than 1 state transition message for each participant |
| final AtomicBoolean success = new AtomicBoolean(true); |
| for (int i = 0; i < 5; i++) { |
| String instanceName = "localhost_" + (12918 + i); |
| String msgPath = PropertyPathBuilder.instanceMessage(clusterName, instanceName); |
| |
| _gZkClient.subscribeChildChanges(msgPath, new IZkChildListener() { |
| |
| @Override |
| public void handleChildChange(String parentPath, List<String> currentChilds) |
| throws Exception { |
| if (currentChilds != null && currentChilds.size() > 1) { |
| List<ZNRecord> records = |
| accessor.getBaseDataAccessor().getChildren(parentPath, null, 0, 0, 0); |
| int transitionMsgCount = 0; |
| for (ZNRecord record : records) { |
| Message msg = new Message(record); |
| if (msg.getMsgType().equals(Message.MessageType.STATE_TRANSITION.name())) { |
| transitionMsgCount++; |
| } |
| } |
| |
| if (transitionMsgCount > 1) { |
| success.set(false); |
| Assert.fail("Should not see more than 1 message"); |
| } |
| } |
| |
| } |
| }); |
| } |
| |
| ClusterControllerManager controller = |
| new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0"); |
| controller.syncStart(); |
| |
| // start participants |
| for (int i = 0; i < 5; i++) { |
| String instanceName = "localhost_" + (12918 + i); |
| |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| participants[i].syncStart(); |
| } |
| |
| boolean result = |
| ClusterStateVerifier |
| .verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR, clusterName)); |
| Assert.assertTrue(result); |
| |
| result = |
| ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, |
| clusterName)); |
| Assert.assertTrue(result); |
| |
| Assert.assertTrue(success.get()); |
| |
| // clean up |
| controller.syncStop(); |
| for (int i = 0; i < 5; i++) { |
| participants[i].syncStop(); |
| } |
| TestHelper.dropCluster(clusterName, _gZkClient); |
| |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| } |