| /** |
| * 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. |
| */ |
| package org.apache.hadoop.hdfs.server.namenode.ha; |
| |
| import static org.apache.hadoop.test.GenericTestUtils.assertExceptionContains; |
| import static org.junit.Assert.fail; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeys; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.MiniDFSNNTopology; |
| import org.apache.hadoop.util.ExitUtil.ExitException; |
| import org.junit.Test; |
| |
| /** |
| * Tests to verify the behavior of failing to fully start transition HA states. |
| */ |
| public class TestStateTransitionFailure { |
| |
| /** |
| * Ensure that a failure to fully transition to the active state causes a |
| * shutdown of the NameNode. |
| */ |
| @Test |
| public void testFailureToTransitionCausesShutdown() throws IOException { |
| MiniDFSCluster cluster = null; |
| try { |
| Configuration conf = new Configuration(); |
| // Set an illegal value for the trash emptier interval. This will cause |
| // the NN to fail to transition to the active state. |
| conf.setLong(CommonConfigurationKeys.FS_TRASH_INTERVAL_KEY, -1); |
| cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(MiniDFSNNTopology.simpleHATopology()) |
| .numDataNodes(0) |
| .checkExitOnShutdown(false) |
| .build(); |
| cluster.waitActive(); |
| try { |
| cluster.transitionToActive(0); |
| fail("Transitioned to active but should not have been able to."); |
| } catch (ExitException ee) { |
| assertExceptionContains( |
| "Cannot start tresh emptier with negative interval", ee); |
| } |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| } |