| 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.Map; |
| |
| import com.google.common.collect.Maps; |
| import org.apache.helix.HelixAdmin; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.ZkUnitTestBase; |
| import org.apache.helix.integration.manager.ClusterControllerManager; |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.model.HelixConfigScope.ConfigScopeProperty; |
| import org.apache.helix.model.IdealState.RebalanceMode; |
| import org.apache.helix.model.builder.HelixConfigScopeBuilder; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestInvalidResourceRebalance extends ZkUnitTestBase { |
| /** |
| * Ensure that the Helix controller doesn't attempt to rebalance resources with invalid ideal |
| * states |
| */ |
| @Test |
| public void testResourceRebalanceSkipped() throws Exception { |
| final int NUM_PARTICIPANTS = 2; |
| final int NUM_PARTITIONS = 4; |
| final int NUM_REPLICAS = 2; |
| final String RESOURCE_NAME = "TestDB0"; |
| |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| String clusterName = className + "_" + methodName; |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| // Set up cluster |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port |
| "localhost", // participant name prefix |
| "TestDB", // resource name prefix |
| 1, // resources |
| NUM_PARTITIONS, // partitions per resource |
| NUM_PARTICIPANTS, // number of nodes |
| NUM_REPLICAS, // replicas |
| "MasterSlave", RebalanceMode.SEMI_AUTO, // use SEMI_AUTO mode |
| true); // do rebalance |
| |
| // start controller |
| ClusterControllerManager controller = |
| new ClusterControllerManager(ZK_ADDR, clusterName, "controller"); |
| controller.syncStart(); |
| |
| // add the ideal state spec (prevents non-CUSTOMIZED MasterSlave ideal states) |
| HelixAdmin helixAdmin = controller.getClusterManagmentTool(); |
| Map<String, String> properties = Maps.newHashMap(); |
| properties.put("IdealStateRule!sampleRuleName", |
| "IDEAL_STATE_MODE=CUSTOMIZED,STATE_MODEL_DEF_REF=MasterSlave"); |
| helixAdmin.setConfig( |
| new HelixConfigScopeBuilder(ConfigScopeProperty.CLUSTER).forCluster(clusterName).build(), |
| properties); |
| |
| // start participants |
| MockParticipantManager[] participants = new MockParticipantManager[NUM_PARTICIPANTS]; |
| for (int i = 0; i < NUM_PARTICIPANTS; i++) { |
| final String instanceName = "localhost_" + (12918 + i); |
| |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| participants[i].syncStart(); |
| } |
| |
| Thread.sleep(1000); |
| boolean result = |
| ClusterStateVerifier.verifyByZkCallback(new EmptyZkVerifier(clusterName, RESOURCE_NAME)); |
| Assert.assertTrue(result, "External view and current state must be empty"); |
| |
| // cleanup |
| for (int i = 0; i < NUM_PARTICIPANTS; i++) { |
| participants[i].syncStop(); |
| } |
| controller.syncStop(); |
| TestHelper.dropCluster(clusterName, _gZkClient); |
| } |
| |
| } |