| 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.Arrays; |
| import java.util.Date; |
| |
| import org.apache.helix.HelixConstants; |
| import org.apache.helix.PropertyKey; |
| import org.apache.helix.TestHelper; |
| 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.ZKHelixDataAccessor; |
| import org.apache.helix.model.IdealState; |
| import org.apache.helix.model.IdealState.RebalanceMode; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| |
| /** |
| * This is a simple integration test. We will use this until we have framework |
| * which helps us write integration tests easily |
| */ |
| |
| public class SinglePartitionLeaderStandByTest extends ZkTestBase { |
| @Test |
| public void test() |
| throws Exception { |
| String clusterName = TestHelper.getTestMethodName(); |
| int n = 4; |
| |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| // Thread.currentThread().join(); |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port |
| "localhost", // participant name prefix |
| "TestDB", // resource name prefix |
| 1, // resources |
| 2, // partitions per resource |
| n, // number of nodes |
| 0, // replicas |
| "LeaderStandby", RebalanceMode.FULL_AUTO, false); // dont rebalance |
| |
| // rebalance ideal-state to use ANY_LIVEINSTANCE for preference list |
| ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, _baseAccessor); |
| PropertyKey.Builder keyBuilder = accessor.keyBuilder(); |
| PropertyKey key = keyBuilder.idealStates("TestDB0"); |
| IdealState idealState = accessor.getProperty(key); |
| idealState.setReplicas(HelixConstants.StateModelToken.ANY_LIVEINSTANCE.toString()); |
| idealState.getRecord() |
| .setListField("TestDB0_0", Arrays.asList(HelixConstants.StateModelToken.ANY_LIVEINSTANCE.toString())); |
| accessor.setProperty(key, idealState); |
| |
| ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0"); |
| controller.syncStart(); |
| |
| // start participants |
| 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].syncStart(); |
| } |
| |
| boolean result = ClusterStateVerifier |
| .verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName)); |
| |
| Assert.assertTrue(result); |
| //stop the first participatn |
| participants[0].syncStop(); |
| Thread.sleep(10000); |
| for (int i = 0; i < 1; i++) { |
| String instanceName = "localhost_" + (12918 + i); |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| participants[i].syncStart(); |
| } |
| // clean up |
| controller.syncStop(); |
| for (int i = 0; i < n; i++) { |
| participants[i].syncStop(); |
| } |
| TestHelper.dropCluster(clusterName, _gZkClient); |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| } |