| /** |
| * 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; |
| |
| import com.google.common.collect.ImmutableMap; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.junit.Test; |
| import org.junit.Before; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.FileUtil; |
| |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.HdfsConfiguration; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| |
| import org.junit.Assert; |
| import org.apache.hadoop.test.GenericTestUtils; |
| |
| /** |
| * Regression test for HDFS-3597, SecondaryNameNode upgrade -- when a 2NN |
| * starts up with an existing directory structure with an old VERSION file, it |
| * should delete the snapshot and download a new one from the NN. |
| */ |
| public class TestSecondaryNameNodeUpgrade { |
| |
| @Before |
| public void cleanupCluster() throws IOException { |
| File hdfsDir = new File(MiniDFSCluster.getBaseDirectory()).getCanonicalFile(); |
| System.out.println("cleanupCluster deleting " + hdfsDir); |
| if (hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir)) { |
| throw new IOException("Could not delete hdfs directory '" + hdfsDir + "'"); |
| } |
| } |
| |
| private void doIt(Map<String, String> paramsToCorrupt) throws IOException { |
| MiniDFSCluster cluster = null; |
| FileSystem fs = null; |
| SecondaryNameNode snn = null; |
| |
| try { |
| Configuration conf = new HdfsConfiguration(); |
| |
| cluster = new MiniDFSCluster.Builder(conf).build(); |
| cluster.waitActive(); |
| |
| conf.set(DFSConfigKeys.DFS_NAMENODE_SECONDARY_HTTP_ADDRESS_KEY, "0.0.0.0:0"); |
| snn = new SecondaryNameNode(conf); |
| |
| fs = cluster.getFileSystem(); |
| |
| fs.mkdirs(new Path("/test/foo")); |
| |
| snn.doCheckpoint(); |
| |
| List<File> versionFiles = snn.getFSImage().getStorage().getFiles(null, "VERSION"); |
| |
| snn.shutdown(); |
| |
| for (File versionFile : versionFiles) { |
| for (Map.Entry<String, String> paramToCorrupt : paramsToCorrupt.entrySet()) { |
| String param = paramToCorrupt.getKey(); |
| String val = paramToCorrupt.getValue(); |
| System.out.println("Changing '" + param + "' to '" + val + "' in " + versionFile); |
| FSImageTestUtil.corruptVersionFile(versionFile, param, val); |
| } |
| } |
| |
| snn = new SecondaryNameNode(conf); |
| |
| fs.mkdirs(new Path("/test/bar")); |
| |
| snn.doCheckpoint(); |
| } finally { |
| if (fs != null) fs.close(); |
| if (cluster != null) cluster.shutdown(); |
| if (snn != null) snn.shutdown(); |
| } |
| } |
| |
| @Test |
| public void testUpgradeLayoutVersionSucceeds() throws IOException { |
| doIt(ImmutableMap.of("layoutVersion", "-39")); |
| } |
| |
| @Test |
| public void testUpgradePreFedSucceeds() throws IOException { |
| doIt(ImmutableMap.of("layoutVersion", "-19", "clusterID", "", |
| "blockpoolID", "")); |
| } |
| |
| @Test |
| public void testChangeNsIDFails() throws IOException { |
| try { |
| doIt(ImmutableMap.of("namespaceID", "2")); |
| Assert.fail("Should throw InconsistentFSStateException"); |
| } catch(IOException e) { |
| GenericTestUtils.assertExceptionContains("Inconsistent checkpoint fields", e); |
| System.out.println("Correctly failed with inconsistent namespaceID: " + e); |
| } |
| } |
| } |