| /** |
| * 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.mapred; |
| |
| import java.io.*; |
| import junit.framework.TestCase; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.mapred.MRCaching.TestResult; |
| |
| /** |
| * A JUnit test to test caching with DFS |
| * |
| */ |
| public class TestMiniMRDFSCaching extends TestCase { |
| |
| public void testWithDFS() throws IOException { |
| MiniMRCluster mr = null; |
| MiniDFSCluster dfs = null; |
| FileSystem fileSys = null; |
| try { |
| JobConf conf = new JobConf(); |
| dfs = new MiniDFSCluster(conf, 1, true, null); |
| fileSys = dfs.getFileSystem(); |
| mr = new MiniMRCluster(2, fileSys.getUri().toString(), 4); |
| MRCaching.setupCache("/cachedir", fileSys); |
| // run the wordcount example with caching |
| TestResult ret = MRCaching.launchMRCache("/testing/wc/input", |
| "/testing/wc/output", |
| "/cachedir", |
| mr.createJobConf(), |
| "The quick brown fox\nhas many silly\n" |
| + "red fox sox\n", false); |
| assertTrue("Archives not matching", ret.isOutputOk); |
| // launch MR cache with symlinks |
| ret = MRCaching.launchMRCache("/testing/wc/input", |
| "/testing/wc/output", |
| "/cachedir", |
| mr.createJobConf(), |
| "The quick brown fox\nhas many silly\n" |
| + "red fox sox\n", true); |
| assertTrue("Archives not matching", ret.isOutputOk); |
| } finally { |
| if (fileSys != null) { |
| fileSys.close(); |
| } |
| if (dfs != null) { |
| dfs.shutdown(); |
| } |
| if (mr != null) { |
| mr.shutdown(); |
| } |
| } |
| } |
| |
| public static void main(String[] argv) throws Exception { |
| TestMiniMRDFSCaching td = new TestMiniMRDFSCaching(); |
| td.testWithDFS(); |
| } |
| } |