| /** |
| * 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.mapreduce.lib.map; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapred.HadoopTestCase; |
| import org.apache.hadoop.mapreduce.*; |
| |
| import java.io.IOException; |
| |
| public class TestMultithreadedMapper extends HadoopTestCase { |
| |
| public TestMultithreadedMapper() throws IOException { |
| super(HadoopTestCase.LOCAL_MR, HadoopTestCase.LOCAL_FS, 1, 1); |
| } |
| |
| public void testOKRun() throws Exception { |
| run(false, false); |
| } |
| |
| public void testIOExRun() throws Exception { |
| run(true, false); |
| } |
| public void testRuntimeExRun() throws Exception { |
| run(false, true); |
| } |
| |
| private void run(boolean ioEx, boolean rtEx) throws Exception { |
| String localPathRoot = System.getProperty("test.build.data", "/tmp"); |
| Path inDir = new Path(localPathRoot, "testing/mt/input"); |
| Path outDir = new Path(localPathRoot, "testing/mt/output"); |
| |
| |
| Configuration conf = createJobConf(); |
| if (ioEx) { |
| conf.setBoolean("multithreaded.ioException", true); |
| } |
| if (rtEx) { |
| conf.setBoolean("multithreaded.runtimeException", true); |
| } |
| |
| Job job = MapReduceTestUtil.createJob(conf, inDir, outDir, 1, 1); |
| job.setJobName("mt"); |
| |
| job.setMapperClass(MultithreadedMapper.class); |
| MultithreadedMapper.setMapperClass(job, IDMap.class); |
| MultithreadedMapper.setNumberOfThreads(job, 2); |
| job.setReducerClass(Reducer.class); |
| |
| job.waitForCompletion(true); |
| |
| if (job.isSuccessful()) { |
| assertFalse(ioEx || rtEx); |
| } |
| else { |
| assertTrue(ioEx || rtEx); |
| } |
| } |
| |
| public static class IDMap extends |
| Mapper<LongWritable, Text, LongWritable, Text> { |
| private boolean ioEx = false; |
| private boolean rtEx = false; |
| |
| public void setup(Context context) { |
| ioEx = context.getConfiguration(). |
| getBoolean("multithreaded.ioException", false); |
| rtEx = context.getConfiguration(). |
| getBoolean("multithreaded.runtimeException", false); |
| } |
| |
| public void map(LongWritable key, Text value, Context context) |
| throws IOException, InterruptedException { |
| if (ioEx) { |
| throw new IOException(); |
| } |
| if (rtEx) { |
| throw new RuntimeException(); |
| } |
| super.map(key, value, context); |
| } |
| } |
| } |