| /** |
| * 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.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeysPublic; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.DistributedFileSystem; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.qjournal.MiniJournalCluster; |
| import org.apache.hadoop.hdfs.qjournal.MiniQJMHACluster; |
| import org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| /** |
| * Test BootstrapStandby when QJM is used for shared edits. |
| */ |
| public class TestBootstrapStandbyWithQJM { |
| private MiniQJMHACluster miniQjmHaCluster; |
| private MiniDFSCluster cluster; |
| private MiniJournalCluster jCluster; |
| |
| @Before |
| public void setup() throws Exception { |
| Configuration conf = new Configuration(); |
| // Turn off IPC client caching, so that the suite can handle |
| // the restart of the daemons between test cases. |
| conf.setInt( |
| CommonConfigurationKeysPublic.IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY, |
| 0); |
| |
| miniQjmHaCluster = new MiniQJMHACluster.Builder(conf).build(); |
| cluster = miniQjmHaCluster.getDfsCluster(); |
| jCluster = miniQjmHaCluster.getJournalCluster(); |
| |
| // make nn0 active |
| cluster.transitionToActive(0); |
| // do sth to generate in-progress edit log data |
| DistributedFileSystem dfs = (DistributedFileSystem) |
| HATestUtil.configureFailoverFs(cluster, conf); |
| dfs.mkdirs(new Path("/test2")); |
| dfs.close(); |
| } |
| |
| @After |
| public void cleanup() throws IOException { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| if (jCluster != null) { |
| jCluster.shutdown(); |
| } |
| } |
| |
| /** BootstrapStandby when the existing NN is standby */ |
| @Test |
| public void testBootstrapStandbyWithStandbyNN() throws Exception { |
| // make the first NN in standby state |
| cluster.transitionToStandby(0); |
| Configuration confNN1 = cluster.getConfiguration(1); |
| |
| // shut down nn1 |
| cluster.shutdownNameNode(1); |
| |
| int rc = BootstrapStandby.run(new String[] { "-force" }, confNN1); |
| assertEquals(0, rc); |
| |
| // Should have copied over the namespace from the standby |
| FSImageTestUtil.assertNNHasCheckpoints(cluster, 1, |
| ImmutableList.of(0)); |
| FSImageTestUtil.assertNNFilesMatch(cluster); |
| } |
| |
| /** BootstrapStandby when the existing NN is active */ |
| @Test |
| public void testBootstrapStandbyWithActiveNN() throws Exception { |
| // make the first NN in active state |
| cluster.transitionToActive(0); |
| Configuration confNN1 = cluster.getConfiguration(1); |
| |
| // shut down nn1 |
| cluster.shutdownNameNode(1); |
| |
| int rc = BootstrapStandby.run(new String[] { "-force" }, confNN1); |
| assertEquals(0, rc); |
| |
| // Should have copied over the namespace from the standby |
| FSImageTestUtil.assertNNHasCheckpoints(cluster, 1, |
| ImmutableList.of(0)); |
| FSImageTestUtil.assertNNFilesMatch(cluster); |
| } |
| } |