| /** |
| * 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.File; |
| |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.MapReduceTestUtil; |
| import org.apache.hadoop.mapreduce.TaskCompletionEvent; |
| import org.junit.After; |
| import org.junit.Test; |
| import static org.junit.Assert.*; |
| |
| public class TestTaskOutputSize { |
| private static Path rootDir = new Path(System.getProperty("test.build.data", |
| "/tmp"), "test"); |
| |
| @After |
| public void tearDown() throws Exception { |
| FileUtil.fullyDelete(new File(rootDir.toString())); |
| } |
| |
| @Test |
| public void testTaskOutputSize() throws Exception { |
| MiniMRCluster mr = new MiniMRCluster(1, "file:///", 1); |
| Path inDir = new Path(rootDir, "input"); |
| Path outDir = new Path(rootDir, "output"); |
| Job job = MapReduceTestUtil.createJob(mr.createJobConf(), inDir, outDir, 1, 1); |
| job.waitForCompletion(true); |
| assertTrue("Job failed", job.isSuccessful()); |
| JobTracker jt = mr.getJobTrackerRunner().getJobTracker(); |
| for (TaskCompletionEvent tce : job.getTaskCompletionEvents(0, 100)) { |
| TaskStatus ts = jt.getTaskStatus(TaskAttemptID.downgrade(tce |
| .getTaskAttemptId())); |
| if (tce.isMapTask()) { |
| assertTrue( |
| "map output size is not found for " + tce.getTaskAttemptId(), ts |
| .getOutputSize() > 0); |
| } else { |
| assertEquals("task output size not expected for " |
| + tce.getTaskAttemptId(), -1, ts.getOutputSize()); |
| } |
| } |
| |
| // test output sizes for job with no reduces |
| job = MapReduceTestUtil.createJob(mr.createJobConf(), inDir, outDir, 1, 0); |
| job.waitForCompletion(true); |
| assertTrue("Job failed", job.isSuccessful()); |
| for (TaskCompletionEvent tce : job.getTaskCompletionEvents(0, 100)) { |
| TaskStatus ts = jt.getTaskStatus(TaskAttemptID.downgrade(tce |
| .getTaskAttemptId())); |
| assertEquals("task output size not expected for " |
| + tce.getTaskAttemptId(), -1, ts.getOutputSize()); |
| } |
| |
| // test output sizes for failed job |
| job = MapReduceTestUtil.createFailJob(mr.createJobConf(), outDir, inDir); |
| job.waitForCompletion(true); |
| assertFalse("Job not failed", job.isSuccessful()); |
| for (TaskCompletionEvent tce : job.getTaskCompletionEvents(0, 100)) { |
| TaskStatus ts = jt.getTaskStatus(TaskAttemptID.downgrade(tce |
| .getTaskAttemptId())); |
| assertEquals("task output size not expected for " |
| + tce.getTaskAttemptId(), -1, ts.getOutputSize()); |
| } |
| } |
| |
| } |