| /* 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 junit.framework.TestCase; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.*; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| |
| public class TestCustomOutputCommitter extends TestCase { |
| static final Path input = new Path("/test/input/"); |
| static final Path output = new Path("/test/output"); |
| |
| public void testCommitter() throws Exception { |
| MiniDFSCluster dfs = null; |
| MiniMRCluster mr = null; |
| FileSystem fs = null; |
| Path testFile = new Path(input, "testfile"); |
| try { |
| Configuration conf = new Configuration(); |
| |
| //start the mini mr and dfs cluster. |
| dfs = new MiniDFSCluster(conf, 2 , true, null); |
| fs = dfs.getFileSystem(); |
| FSDataOutputStream stream = fs.create(testFile); |
| stream.write("teststring".getBytes()); |
| stream.close(); |
| |
| mr = new MiniMRCluster(2, fs.getUri().toString(), 1); |
| |
| String[] args = new String[6]; |
| args[0] = "-libjars"; |
| // the testjob.jar as a temporary jar file |
| // holding custom output committer |
| args[1] = "build/test/testjar/testjob.jar"; |
| args[2] = "-D"; |
| args[3] = "mapred.output.committer.class=testjar.CustomOutputCommitter"; |
| args[4] = input.toString(); |
| args[5] = output.toString(); |
| JobConf jobConf = mr.createJobConf(); |
| int ret = ToolRunner.run(jobConf, new WordCount(), args); |
| |
| assertTrue("not failed ", ret == 0); |
| } finally { |
| if (dfs != null) {dfs.shutdown();}; |
| if (mr != null) {mr.shutdown();}; |
| } |
| } |
| } |