| 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.PropertyKey; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.zookeeper.datamodel.ZNRecord; |
| import org.apache.helix.ZkTestHelper; |
| import org.apache.helix.ZkUnitTestBase; |
| 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.ExternalView; |
| import org.apache.helix.model.LiveInstance; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| /** |
| * Test clean external-view - if current-state is remove externally, controller should remove the |
| * orphan external-view |
| */ |
| public class TestCleanupExternalView extends ZkUnitTestBase { |
| private ExternalView _externalView = null; |
| @Test |
| public void test() throws Exception { |
| // Logger.getRootLogger().setLevel(Level.INFO); |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| String clusterName = className + "_" + methodName; |
| int n = 2; |
| |
| 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 |
| 2, // partitions per resource |
| n, // number of nodes |
| 2, // replicas |
| "MasterSlave", true); // do rebalance |
| |
| 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); |
| |
| // disable controller |
| ZKHelixAdmin admin = new ZKHelixAdmin(_gZkClient); |
| admin.enableCluster(clusterName, false); |
| // wait all pending zk-events being processed, otherwise remove current-state will cause |
| // controller send O->S message |
| ZkTestHelper.tryWaitZkEventsCleaned(controller.getZkClient()); |
| // System.out.println("paused controller"); |
| |
| // drop resource |
| admin.dropResource(clusterName, "TestDB0"); |
| |
| // delete current-state manually, controller shall remove external-view when cluster is enabled |
| // again |
| ZKHelixDataAccessor accessor = |
| new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient)); |
| PropertyKey.Builder keyBuilder = accessor.keyBuilder(); |
| |
| // System.out.println("remove current-state"); |
| LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance("localhost_12918")); |
| accessor.removeProperty(keyBuilder.currentState("localhost_12918", liveInstance.getEphemeralOwner(), |
| "TestDB0")); |
| liveInstance = accessor.getProperty(keyBuilder.liveInstance("localhost_12919")); |
| accessor.removeProperty( |
| keyBuilder.currentState("localhost_12919", liveInstance.getEphemeralOwner(), "TestDB0")); |
| |
| // re-enable controller shall remove orphan external-view |
| // System.out.println("re-enabling controller"); |
| admin.enableCluster(clusterName, true); |
| |
| result = TestHelper.verify(() -> { |
| _externalView = accessor.getProperty(keyBuilder.externalView("TestDB0")); |
| return _externalView == null; |
| }, TestHelper.WAIT_DURATION); |
| |
| Assert.assertTrue(result, "external-view for TestDB0 should be removed, but was: " + _externalView); |
| |
| // 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())); |
| } |
| |
| } |