| package org.apache.helix.integration.manager; |
| |
| /* |
| * 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.concurrent.TimeUnit; |
| |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.ZkTestHelper; |
| import org.apache.helix.ZkUnitTestBase; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestControllerManager extends ZkUnitTestBase { |
| |
| @Test |
| public void testMultipleControllersOfSameName() throws Exception { |
| // Logger.getRootLogger().setLevel(Level.INFO); |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| String clusterName = className + "_" + methodName; |
| int n = 5; |
| |
| 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 |
| 16, // partitions per resource |
| n, // number of nodes |
| 3, // replicas |
| "MasterSlave", true); // do rebalance |
| |
| // start multiple controllers of same name |
| int m = 3; |
| ClusterControllerManager[] controllers = new ClusterControllerManager[m]; |
| |
| for (int i = 0; i < m; i++) { |
| controllers[i] = new ClusterControllerManager(ZK_ADDR, clusterName, "controller"); |
| controllers[i].syncStart(); |
| } |
| |
| // assert that only one is leader |
| int leaderCnt = 0; |
| for (int i = 0; i < m; i++) { |
| if (controllers[i].isLeader()) { |
| leaderCnt++; |
| } |
| } |
| Assert.assertEquals(leaderCnt, 1, "Should have only 1 leader but was " + leaderCnt); |
| |
| MockParticipantManager[] participants = new MockParticipantManager[n]; |
| for (int i = 0; i < n; i++) { |
| final String instanceName = "localhost_" + (12918 + i); |
| |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| |
| participants[i].syncStart(); |
| } |
| |
| boolean result = |
| ClusterStateVerifier |
| .verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, |
| clusterName)); |
| Assert.assertTrue(result); |
| |
| // cleanup |
| for (int i = 0; i < m; i++) { |
| controllers[i].syncStop(); |
| } |
| |
| for (int i = 0; i < n; i++) { |
| participants[i].syncStop(); |
| } |
| |
| deleteCluster(clusterName); |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| |
| @Test |
| public void simpleSessionExpiryTest() throws Exception { |
| // Logger.getRootLogger().setLevel(Level.WARN); |
| |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| final String clusterName = className + "_" + methodName; |
| int n = 5; |
| |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| MockParticipantManager[] participants = new MockParticipantManager[n]; |
| |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port |
| "localhost", // participant name prefix |
| "TestDB", // resource name prefix |
| 1, // resources |
| 16, // partitions per resource |
| n, // number of nodes |
| 3, // replicas |
| "MasterSlave", true); // do rebalance |
| |
| // start controller |
| ClusterControllerManager controller = |
| new ClusterControllerManager(ZK_ADDR, clusterName, "controller"); |
| controller.syncStart(); |
| |
| // start participants |
| for (int i = 0; i < n; i++) { |
| String instanceName = "localhost_" + (12918 + i); |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| participants[i].syncStart(); |
| } |
| |
| boolean result = |
| ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, |
| clusterName)); |
| Assert.assertTrue(result); |
| String oldSessionId = controller.getSessionId(); |
| |
| // expire zk-connection on localhost_12918 |
| ZkTestHelper.expireSession(controller.getZkClient()); |
| |
| // wait until session expiry callback happens |
| TimeUnit.MILLISECONDS.sleep(100); |
| |
| result = |
| ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, |
| clusterName)); |
| Assert.assertTrue(result); |
| String newSessionId = controller.getSessionId(); |
| Assert.assertNotSame(newSessionId, oldSessionId); |
| |
| // cleanup |
| controller.syncStop(); |
| for (int i = 0; i < n; i++) { |
| participants[i].syncStop(); |
| } |
| |
| deleteCluster(clusterName); |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| } |