| /** |
| * 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.nativetask.combinertest; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapred.Task; |
| import org.apache.hadoop.mapred.nativetask.NativeRuntime; |
| import org.apache.hadoop.mapred.nativetask.combinertest.WordCount.IntSumReducer; |
| import org.apache.hadoop.mapred.nativetask.combinertest.WordCount.TokenizerMapper; |
| import org.apache.hadoop.mapred.nativetask.kvtest.TestInputFile; |
| import org.apache.hadoop.mapred.nativetask.testutil.ResultVerifier; |
| import org.apache.hadoop.mapred.nativetask.testutil.ScenarioConfiguration; |
| import org.apache.hadoop.mapred.nativetask.testutil.TestConstants; |
| import org.apache.hadoop.mapreduce.Counter; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; |
| import org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat; |
| import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; |
| import org.junit.AfterClass; |
| import org.apache.hadoop.util.NativeCodeLoader; |
| import org.junit.Assume; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| public class CombinerTest { |
| private FileSystem fs; |
| private String inputpath; |
| private String nativeoutputpath; |
| private String hadoopoutputpath; |
| |
| @Test |
| public void testWordCountCombiner() throws Exception { |
| final Configuration nativeConf = ScenarioConfiguration.getNativeConfiguration(); |
| nativeConf.addResource(TestConstants.COMBINER_CONF_PATH); |
| final Job nativejob = getJob("nativewordcount", nativeConf, inputpath, nativeoutputpath); |
| |
| final Configuration commonConf = ScenarioConfiguration.getNormalConfiguration(); |
| commonConf.addResource(TestConstants.COMBINER_CONF_PATH); |
| final Job normaljob = getJob("normalwordcount", commonConf, inputpath, hadoopoutputpath); |
| |
| assertTrue(nativejob.waitForCompletion(true)); |
| assertTrue(normaljob.waitForCompletion(true)); |
| assertEquals(true, ResultVerifier.verify(nativeoutputpath, hadoopoutputpath)); |
| ResultVerifier.verifyCounters(normaljob, nativejob, true); |
| } |
| |
| @Before |
| public void startUp() throws Exception { |
| Assume.assumeTrue(NativeCodeLoader.isNativeCodeLoaded()); |
| Assume.assumeTrue(NativeRuntime.isNativeLibraryLoaded()); |
| final ScenarioConfiguration conf = new ScenarioConfiguration(); |
| conf.addcombinerConf(); |
| |
| this.fs = FileSystem.get(conf); |
| |
| this.inputpath = TestConstants.NATIVETASK_COMBINER_TEST_INPUTDIR + "/wordcount"; |
| |
| if (!fs.exists(new Path(inputpath))) { |
| new TestInputFile( |
| conf.getInt(TestConstants.NATIVETASK_COMBINER_WORDCOUNT_FILESIZE, 1000000), |
| Text.class.getName(), |
| Text.class.getName(), conf).createSequenceTestFile(inputpath, 1, (byte)('a')); |
| } |
| |
| this.nativeoutputpath = TestConstants.NATIVETASK_COMBINER_TEST_NATIVE_OUTPUTDIR + |
| "/nativewordcount"; |
| this.hadoopoutputpath = TestConstants.NATIVETASK_COMBINER_TEST_NORMAL_OUTPUTDIR + |
| "/normalwordcount"; |
| } |
| |
| @AfterClass |
| public static void cleanUp() throws IOException { |
| final FileSystem fs = FileSystem.get(new ScenarioConfiguration()); |
| fs.delete(new Path(TestConstants.NATIVETASK_COMBINER_TEST_DIR), true); |
| fs.close(); |
| } |
| |
| protected static Job getJob(String jobname, Configuration inputConf, |
| String inputpath, String outputpath) |
| throws Exception { |
| final Configuration conf = new Configuration(inputConf); |
| conf.set("fileoutputpath", outputpath); |
| final FileSystem fs = FileSystem.get(conf); |
| if (fs.exists(new Path(outputpath))) { |
| fs.delete(new Path(outputpath), true); |
| } |
| fs.close(); |
| final Job job = Job.getInstance(conf, jobname); |
| job.setJarByClass(WordCount.class); |
| job.setMapperClass(TokenizerMapper.class); |
| job.setCombinerClass(IntSumReducer.class); |
| job.setReducerClass(IntSumReducer.class); |
| job.setOutputKeyClass(Text.class); |
| job.setOutputValueClass(IntWritable.class); |
| job.setInputFormatClass(SequenceFileInputFormat.class); |
| FileInputFormat.addInputPath(job, new Path(inputpath)); |
| FileOutputFormat.setOutputPath(job, new Path(outputpath)); |
| return job; |
| } |
| } |