| 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 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.model.IdealState; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestNullReplica extends ZkTestBase { |
| |
| @Test |
| public void testNullReplica() throws Exception { |
| // Logger.getRootLogger().setLevel(Level.INFO); |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| String clusterName = className + "_" + methodName; |
| |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| MockParticipantManager[] participants = new MockParticipantManager[5]; |
| |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant 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 |
| // set replica in ideal state to null |
| String idealStatePath = PropertyPathBuilder.idealState(clusterName, "TestDB0"); |
| ZNRecord idealState = _gZkClient.readData(idealStatePath); |
| idealState.getSimpleFields().remove(IdealState.IdealStateProperty.REPLICAS.toString()); |
| _gZkClient.writeData(idealStatePath, idealState); |
| |
| 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 BestPossAndExtViewZkVerifier(ZK_ADDR, |
| clusterName)); |
| Assert.assertTrue(result); |
| |
| // clean up |
| controller.syncStop(); |
| for (int i = 0; i < 5; i++) { |
| participants[i].syncStop(); |
| } |
| deleteCluster(clusterName); |
| |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| } |