/**
* 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;
import org.junit.Ignore;
/**
* A JUnit test to test caching with DFS
*
*/
@Ignore
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");
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");
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();
}
}