| /** |
| * 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.streaming; |
| |
| import org.junit.Test; |
| import org.junit.Before; |
| import static org.junit.Assert.*; |
| |
| import java.io.*; |
| import java.util.*; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| |
| /** |
| * This class tests if hadoopStreaming fails a job when the mapper or |
| * reducers have non-zero exit status and the |
| * stream.non.zero.exit.status.is.failure jobconf is set. |
| */ |
| public class TestStreamingExitStatus |
| { |
| protected File TEST_DIR = |
| new File("target/TestStreamingExitStatus").getAbsoluteFile(); |
| protected File INPUT_FILE = new File(TEST_DIR, "input.txt"); |
| protected File OUTPUT_DIR = new File(TEST_DIR, "out"); |
| |
| protected String failingTask = UtilTest.makeJavaCommand(FailApp.class, new String[]{"true"}); |
| protected String echoTask = UtilTest.makeJavaCommand(FailApp.class, new String[]{"false"}); |
| |
| public TestStreamingExitStatus() throws IOException { |
| UtilTest utilTest = new UtilTest(getClass().getName()); |
| utilTest.checkUserDir(); |
| utilTest.redirectIfAntJunit(); |
| } |
| |
| protected String[] genArgs(boolean exitStatusIsFailure, boolean failMap) { |
| return new String[] { |
| "-input", INPUT_FILE.getAbsolutePath(), |
| "-output", OUTPUT_DIR.getAbsolutePath(), |
| "-mapper", (failMap ? failingTask : echoTask), |
| "-reducer", (failMap ? echoTask : failingTask), |
| "-jobconf", "mapreduce.task.files.preserve.failedtasks=true", |
| "-jobconf", "stream.non.zero.exit.is.failure=" + exitStatusIsFailure, |
| "-jobconf", "stream.tmpdir="+System.getProperty("test.build.data","/tmp"), |
| "-jobconf", "mapreduce.task.io.sort.mb=10" |
| }; |
| } |
| |
| @Before |
| public void setUp() throws IOException { |
| UtilTest.recursiveDelete(TEST_DIR); |
| assertTrue(TEST_DIR.mkdirs()); |
| |
| FileOutputStream out = new FileOutputStream(INPUT_FILE.getAbsoluteFile()); |
| out.write("hello\n".getBytes()); |
| out.close(); |
| } |
| |
| public void runStreamJob(boolean exitStatusIsFailure, boolean failMap) throws Exception { |
| boolean mayExit = false; |
| int returnStatus = 0; |
| |
| StreamJob job = new StreamJob(genArgs(exitStatusIsFailure, failMap), mayExit); |
| returnStatus = job.go(); |
| |
| if (exitStatusIsFailure) { |
| assertEquals("Streaming Job failure code expected", /*job not successful:*/1, returnStatus); |
| } else { |
| assertEquals("Streaming Job expected to succeed", 0, returnStatus); |
| } |
| } |
| |
| @Test |
| public void testMapFailOk() throws Exception { |
| runStreamJob(false, true); |
| } |
| |
| @Test |
| public void testMapFailNotOk() throws Exception { |
| runStreamJob(true, true); |
| } |
| |
| @Test |
| public void testReduceFailOk() throws Exception { |
| runStreamJob(false, false); |
| } |
| |
| @Test |
| public void testReduceFailNotOk() throws Exception { |
| runStreamJob(true, false); |
| } |
| |
| } |