| /** |
| * 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.v2; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.security.PrivilegedExceptionAction; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.jar.JarOutputStream; |
| import java.util.zip.ZipEntry; |
| import org.apache.commons.io.FileUtils; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.FailingMapper; |
| import org.apache.hadoop.RandomTextWriterJob; |
| import org.apache.hadoop.RandomTextWriterJob.RandomInputFormat; |
| import org.apache.hadoop.SleepJob; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeysPublic; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.FileContext; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.RemoteIterator; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapreduce.Counters; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.JobCounter; |
| import org.apache.hadoop.mapreduce.JobStatus; |
| import org.apache.hadoop.mapreduce.MRConfig; |
| import org.apache.hadoop.mapreduce.MRJobConfig; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.hadoop.mapreduce.TaskAttemptID; |
| import org.apache.hadoop.mapreduce.TaskCompletionEvent; |
| import org.apache.hadoop.mapreduce.TaskID; |
| import org.apache.hadoop.mapreduce.TaskReport; |
| import org.apache.hadoop.mapreduce.TaskType; |
| import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; |
| import org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter; |
| import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; |
| import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat; |
| import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.security.token.Token; |
| import org.apache.hadoop.security.token.TokenIdentifier; |
| import org.apache.hadoop.util.JarFinder; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| public class TestMRJobs { |
| |
| private static final Log LOG = LogFactory.getLog(TestMRJobs.class); |
| |
| protected static MiniMRYarnCluster mrCluster; |
| protected static MiniDFSCluster dfsCluster; |
| |
| private static Configuration conf = new Configuration(); |
| private static FileSystem localFs; |
| private static FileSystem remoteFs; |
| static { |
| try { |
| localFs = FileSystem.getLocal(conf); |
| } catch (IOException io) { |
| throw new RuntimeException("problem getting local fs", io); |
| } |
| try { |
| dfsCluster = new MiniDFSCluster.Builder(conf).numDataNodes(2) |
| .format(true).racks(null).build(); |
| remoteFs = dfsCluster.getFileSystem(); |
| } catch (IOException io) { |
| throw new RuntimeException("problem starting mini dfs cluster", io); |
| } |
| } |
| |
| private static Path TEST_ROOT_DIR = new Path("target", |
| TestMRJobs.class.getName() + "-tmpDir").makeQualified(localFs); |
| static Path APP_JAR = new Path(TEST_ROOT_DIR, "MRAppJar.jar"); |
| private static final String OUTPUT_ROOT_DIR = "/tmp/" + |
| TestMRJobs.class.getSimpleName(); |
| |
| @BeforeClass |
| public static void setup() throws IOException { |
| |
| if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) { |
| LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR |
| + " not found. Not running test."); |
| return; |
| } |
| |
| if (mrCluster == null) { |
| mrCluster = new MiniMRYarnCluster(TestMRJobs.class.getName(), 3); |
| Configuration conf = new Configuration(); |
| conf.set("fs.defaultFS", remoteFs.getUri().toString()); // use HDFS |
| conf.set(MRJobConfig.MR_AM_STAGING_DIR, "/apps_staging_dir"); |
| mrCluster.init(conf); |
| mrCluster.start(); |
| } |
| |
| // Copy MRAppJar and make it private. TODO: FIXME. This is a hack to |
| // workaround the absent public discache. |
| localFs.copyFromLocalFile(new Path(MiniMRYarnCluster.APPJAR), APP_JAR); |
| localFs.setPermission(APP_JAR, new FsPermission("700")); |
| } |
| |
| @AfterClass |
| public static void tearDown() { |
| if (mrCluster != null) { |
| mrCluster.stop(); |
| mrCluster = null; |
| } |
| if (dfsCluster != null) { |
| dfsCluster.shutdown(); |
| dfsCluster = null; |
| } |
| } |
| |
| @Test (timeout = 30000) |
| public void testSleepJob() throws IOException, InterruptedException, |
| ClassNotFoundException { |
| LOG.info("\n\n\nStarting testSleepJob()."); |
| |
| if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) { |
| LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR |
| + " not found. Not running test."); |
| return; |
| } |
| |
| Configuration sleepConf = new Configuration(mrCluster.getConfig()); |
| // set master address to local to test that local mode applied iff framework == local |
| sleepConf.set(MRConfig.MASTER_ADDRESS, "local"); |
| |
| SleepJob sleepJob = new SleepJob(); |
| sleepJob.setConf(sleepConf); |
| |
| int numReduces = sleepConf.getInt("TestMRJobs.testSleepJob.reduces", 2); // or sleepConf.getConfig().getInt(MRJobConfig.NUM_REDUCES, 2); |
| |
| // job with 3 maps (10s) and numReduces reduces (5s), 1 "record" each: |
| Job job = sleepJob.createJob(3, numReduces, 10000, 1, 5000, 1); |
| |
| job.addFileToClassPath(APP_JAR); // The AppMaster jar itself. |
| job.setJarByClass(SleepJob.class); |
| job.setMaxMapAttempts(1); // speed up failures |
| job.submit(); |
| String trackingUrl = job.getTrackingURL(); |
| String jobId = job.getJobID().toString(); |
| boolean succeeded = job.waitForCompletion(true); |
| Assert.assertTrue(succeeded); |
| Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState()); |
| Assert.assertTrue("Tracking URL was " + trackingUrl + |
| " but didn't Match Job ID " + jobId , |
| trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/")); |
| verifySleepJobCounters(job); |
| verifyTaskProgress(job); |
| |
| // TODO later: add explicit "isUber()" checks of some sort (extend |
| // JobStatus?)--compare against MRJobConfig.JOB_UBERTASK_ENABLE value |
| } |
| |
| protected void verifySleepJobCounters(Job job) throws InterruptedException, |
| IOException { |
| Counters counters = job.getCounters(); |
| Assert.assertEquals(3, counters.findCounter(JobCounter.OTHER_LOCAL_MAPS) |
| .getValue()); |
| Assert.assertEquals(3, counters.findCounter(JobCounter.TOTAL_LAUNCHED_MAPS) |
| .getValue()); |
| Assert.assertEquals(2, |
| counters.findCounter(JobCounter.TOTAL_LAUNCHED_REDUCES).getValue()); |
| Assert |
| .assertTrue(counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS) != null |
| && counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS).getValue() != 0); |
| Assert |
| .assertTrue(counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS) != null |
| && counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS).getValue() != 0); |
| } |
| |
| protected void verifyTaskProgress(Job job) throws InterruptedException, |
| IOException { |
| for (TaskReport taskReport : job.getTaskReports(TaskType.MAP)) { |
| Assert.assertTrue(0.9999f < taskReport.getProgress() |
| && 1.0001f > taskReport.getProgress()); |
| } |
| for (TaskReport taskReport : job.getTaskReports(TaskType.REDUCE)) { |
| Assert.assertTrue(0.9999f < taskReport.getProgress() |
| && 1.0001f > taskReport.getProgress()); |
| } |
| } |
| |
| @Test (timeout = 30000) |
| public void testRandomWriter() throws IOException, InterruptedException, |
| ClassNotFoundException { |
| |
| LOG.info("\n\n\nStarting testRandomWriter()."); |
| if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) { |
| LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR |
| + " not found. Not running test."); |
| return; |
| } |
| |
| RandomTextWriterJob randomWriterJob = new RandomTextWriterJob(); |
| mrCluster.getConfig().set(RandomTextWriterJob.TOTAL_BYTES, "3072"); |
| mrCluster.getConfig().set(RandomTextWriterJob.BYTES_PER_MAP, "1024"); |
| Job job = randomWriterJob.createJob(mrCluster.getConfig()); |
| Path outputDir = new Path(OUTPUT_ROOT_DIR, "random-output"); |
| FileOutputFormat.setOutputPath(job, outputDir); |
| job.setSpeculativeExecution(false); |
| job.addFileToClassPath(APP_JAR); // The AppMaster jar itself. |
| job.setJarByClass(RandomTextWriterJob.class); |
| job.setMaxMapAttempts(1); // speed up failures |
| job.submit(); |
| String trackingUrl = job.getTrackingURL(); |
| String jobId = job.getJobID().toString(); |
| boolean succeeded = job.waitForCompletion(true); |
| Assert.assertTrue(succeeded); |
| Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState()); |
| Assert.assertTrue("Tracking URL was " + trackingUrl + |
| " but didn't Match Job ID " + jobId , |
| trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/")); |
| |
| // Make sure there are three files in the output-dir |
| |
| RemoteIterator<FileStatus> iterator = |
| FileContext.getFileContext(mrCluster.getConfig()).listStatus( |
| outputDir); |
| int count = 0; |
| while (iterator.hasNext()) { |
| FileStatus file = iterator.next(); |
| if (!file.getPath().getName() |
| .equals(FileOutputCommitter.SUCCEEDED_FILE_NAME)) { |
| count++; |
| } |
| } |
| Assert.assertEquals("Number of part files is wrong!", 3, count); |
| verifyRandomWriterCounters(job); |
| |
| // TODO later: add explicit "isUber()" checks of some sort |
| } |
| |
| protected void verifyRandomWriterCounters(Job job) |
| throws InterruptedException, IOException { |
| Counters counters = job.getCounters(); |
| Assert.assertEquals(3, counters.findCounter(JobCounter.OTHER_LOCAL_MAPS) |
| .getValue()); |
| Assert.assertEquals(3, counters.findCounter(JobCounter.TOTAL_LAUNCHED_MAPS) |
| .getValue()); |
| Assert |
| .assertTrue(counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS) != null |
| && counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS).getValue() != 0); |
| } |
| |
| @Test (timeout = 30000) |
| public void testFailingMapper() throws IOException, InterruptedException, |
| ClassNotFoundException { |
| |
| LOG.info("\n\n\nStarting testFailingMapper()."); |
| |
| if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) { |
| LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR |
| + " not found. Not running test."); |
| return; |
| } |
| |
| Job job = runFailingMapperJob(); |
| |
| TaskID taskID = new TaskID(job.getJobID(), TaskType.MAP, 0); |
| TaskAttemptID aId = new TaskAttemptID(taskID, 0); |
| System.out.println("Diagnostics for " + aId + " :"); |
| for (String diag : job.getTaskDiagnostics(aId)) { |
| System.out.println(diag); |
| } |
| aId = new TaskAttemptID(taskID, 1); |
| System.out.println("Diagnostics for " + aId + " :"); |
| for (String diag : job.getTaskDiagnostics(aId)) { |
| System.out.println(diag); |
| } |
| |
| TaskCompletionEvent[] events = job.getTaskCompletionEvents(0, 2); |
| Assert.assertEquals(TaskCompletionEvent.Status.FAILED, |
| events[0].getStatus()); |
| Assert.assertEquals(TaskCompletionEvent.Status.TIPFAILED, |
| events[1].getStatus()); |
| Assert.assertEquals(JobStatus.State.FAILED, job.getJobState()); |
| verifyFailingMapperCounters(job); |
| |
| // TODO later: add explicit "isUber()" checks of some sort |
| } |
| |
| protected void verifyFailingMapperCounters(Job job) |
| throws InterruptedException, IOException { |
| Counters counters = job.getCounters(); |
| Assert.assertEquals(2, counters.findCounter(JobCounter.OTHER_LOCAL_MAPS) |
| .getValue()); |
| Assert.assertEquals(2, counters.findCounter(JobCounter.TOTAL_LAUNCHED_MAPS) |
| .getValue()); |
| Assert.assertEquals(2, counters.findCounter(JobCounter.NUM_FAILED_MAPS) |
| .getValue()); |
| Assert |
| .assertTrue(counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS) != null |
| && counters.findCounter(JobCounter.SLOTS_MILLIS_MAPS).getValue() != 0); |
| } |
| |
| protected Job runFailingMapperJob() |
| throws IOException, InterruptedException, ClassNotFoundException { |
| Configuration myConf = new Configuration(mrCluster.getConfig()); |
| myConf.setInt(MRJobConfig.NUM_MAPS, 1); |
| myConf.setInt(MRJobConfig.MAP_MAX_ATTEMPTS, 2); //reduce the number of attempts |
| |
| Job job = new Job(myConf); |
| |
| job.setJarByClass(FailingMapper.class); |
| job.setJobName("failmapper"); |
| job.setOutputKeyClass(Text.class); |
| job.setOutputValueClass(Text.class); |
| job.setInputFormatClass(RandomInputFormat.class); |
| job.setOutputFormatClass(TextOutputFormat.class); |
| job.setMapperClass(FailingMapper.class); |
| job.setNumReduceTasks(0); |
| |
| FileOutputFormat.setOutputPath(job, new Path(OUTPUT_ROOT_DIR, |
| "failmapper-output")); |
| job.addFileToClassPath(APP_JAR); // The AppMaster jar itself. |
| job.submit(); |
| String trackingUrl = job.getTrackingURL(); |
| String jobId = job.getJobID().toString(); |
| boolean succeeded = job.waitForCompletion(true); |
| Assert.assertFalse(succeeded); |
| Assert.assertTrue("Tracking URL was " + trackingUrl + |
| " but didn't Match Job ID " + jobId , |
| trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/")); |
| return job; |
| } |
| |
| //@Test (timeout = 30000) |
| public void testSleepJobWithSecurityOn() throws IOException, |
| InterruptedException, ClassNotFoundException { |
| |
| LOG.info("\n\n\nStarting testSleepJobWithSecurityOn()."); |
| |
| if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) { |
| return; |
| } |
| |
| mrCluster.getConfig().set( |
| CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION, |
| "kerberos"); |
| mrCluster.getConfig().set(YarnConfiguration.RM_KEYTAB, "/etc/krb5.keytab"); |
| mrCluster.getConfig().set(YarnConfiguration.NM_KEYTAB, "/etc/krb5.keytab"); |
| mrCluster.getConfig().set(YarnConfiguration.RM_PRINCIPAL, |
| "rm/sightbusy-lx@LOCALHOST"); |
| mrCluster.getConfig().set(YarnConfiguration.NM_PRINCIPAL, |
| "nm/sightbusy-lx@LOCALHOST"); |
| UserGroupInformation.setConfiguration(mrCluster.getConfig()); |
| |
| // Keep it in here instead of after RM/NM as multiple user logins happen in |
| // the same JVM. |
| UserGroupInformation user = UserGroupInformation.getCurrentUser(); |
| |
| LOG.info("User name is " + user.getUserName()); |
| for (Token<? extends TokenIdentifier> str : user.getTokens()) { |
| LOG.info("Token is " + str.encodeToUrlString()); |
| } |
| user.doAs(new PrivilegedExceptionAction<Void>() { |
| @Override |
| public Void run() throws Exception { |
| SleepJob sleepJob = new SleepJob(); |
| sleepJob.setConf(mrCluster.getConfig()); |
| Job job = sleepJob.createJob(3, 0, 10000, 1, 0, 0); |
| // //Job with reduces |
| // Job job = sleepJob.createJob(3, 2, 10000, 1, 10000, 1); |
| job.addFileToClassPath(APP_JAR); // The AppMaster jar itself. |
| job.submit(); |
| String trackingUrl = job.getTrackingURL(); |
| String jobId = job.getJobID().toString(); |
| job.waitForCompletion(true); |
| Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState()); |
| Assert.assertTrue("Tracking URL was " + trackingUrl + |
| " but didn't Match Job ID " + jobId , |
| trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/")); |
| return null; |
| } |
| }); |
| |
| // TODO later: add explicit "isUber()" checks of some sort |
| } |
| |
| public static class DistributedCacheChecker extends |
| Mapper<LongWritable, Text, NullWritable, NullWritable> { |
| |
| @Override |
| public void setup(Context context) throws IOException { |
| Configuration conf = context.getConfiguration(); |
| Path[] files = context.getLocalCacheFiles(); |
| Path[] archives = context.getLocalCacheArchives(); |
| |
| // Check that 4 (2 + appjar + DistrubutedCacheChecker jar) files |
| // and 2 archives are present |
| Assert.assertEquals(4, files.length); |
| Assert.assertEquals(2, archives.length); |
| |
| // Check lengths of the files |
| Map<String, Path> filesMap = pathsToMap(files); |
| Assert.assertTrue(filesMap.containsKey("distributed.first.symlink")); |
| Assert.assertEquals(1, localFs.getFileStatus( |
| filesMap.get("distributed.first.symlink")).getLen()); |
| Assert.assertTrue(filesMap.containsKey("distributed.second.jar")); |
| Assert.assertTrue(localFs.getFileStatus( |
| filesMap.get("distributed.second.jar")).getLen() > 1); |
| |
| // Check extraction of the archive |
| Map<String, Path> archivesMap = pathsToMap(archives); |
| Assert.assertTrue(archivesMap.containsKey("distributed.third.jar")); |
| Assert.assertTrue(localFs.exists(new Path( |
| archivesMap.get("distributed.third.jar"), "distributed.jar.inside3"))); |
| Assert.assertTrue(archivesMap.containsKey("distributed.fourth.jar")); |
| Assert.assertTrue(localFs.exists(new Path( |
| archivesMap.get("distributed.fourth.jar"), "distributed.jar.inside4"))); |
| |
| // Check the class loaders |
| LOG.info("Java Classpath: " + System.getProperty("java.class.path")); |
| ClassLoader cl = Thread.currentThread().getContextClassLoader(); |
| // Both the file and the archive should have been added to classpath, so |
| // both should be reachable via the class loader. |
| Assert.assertNotNull(cl.getResource("distributed.jar.inside2")); |
| Assert.assertNotNull(cl.getResource("distributed.jar.inside3")); |
| Assert.assertNotNull(cl.getResource("distributed.jar.inside4")); |
| // The Job Jar should have been extracted to a folder named "job.jar" and |
| // added to the classpath; the two jar files in the lib folder in the Job |
| // Jar should have also been added to the classpath |
| Assert.assertNotNull(cl.getResource("job.jar/")); |
| Assert.assertNotNull(cl.getResource("job.jar/lib/lib1.jar")); |
| Assert.assertNotNull(cl.getResource("job.jar/lib/lib2.jar")); |
| |
| // Check that the symlink for the renaming was created in the cwd; |
| File symlinkFile = new File("distributed.first.symlink"); |
| Assert.assertTrue(symlinkFile.exists()); |
| Assert.assertEquals(1, symlinkFile.length()); |
| |
| // Check that the symlink for the Job Jar was created in the cwd and |
| // points to the extracted directory |
| File jobJarDir = new File("job.jar"); |
| Assert.assertTrue(FileUtils.isSymlink(jobJarDir)); |
| Assert.assertTrue(jobJarDir.isDirectory()); |
| } |
| |
| /** |
| * Returns a mapping of the final component of each path to the corresponding |
| * Path instance. This assumes that every given Path has a unique string in |
| * the final path component, which is true for these tests. |
| * |
| * @param paths Path[] to map |
| * @return Map<String, Path> mapping the final component of each path to the |
| * corresponding Path instance |
| */ |
| private static Map<String, Path> pathsToMap(Path[] paths) { |
| Map<String, Path> map = new HashMap<String, Path>(); |
| for (Path path: paths) { |
| map.put(path.getName(), path); |
| } |
| return map; |
| } |
| } |
| |
| public void _testDistributedCache(String jobJarPath) throws Exception { |
| if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) { |
| LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR |
| + " not found. Not running test."); |
| return; |
| } |
| |
| // Create a temporary file of length 1. |
| Path first = createTempFile("distributed.first", "x"); |
| // Create two jars with a single file inside them. |
| Path second = |
| makeJar(new Path(TEST_ROOT_DIR, "distributed.second.jar"), 2); |
| Path third = |
| makeJar(new Path(TEST_ROOT_DIR, "distributed.third.jar"), 3); |
| Path fourth = |
| makeJar(new Path(TEST_ROOT_DIR, "distributed.fourth.jar"), 4); |
| |
| Job job = Job.getInstance(mrCluster.getConfig()); |
| |
| // Set the job jar to a new "dummy" jar so we can check that its extracted |
| // properly |
| job.setJar(jobJarPath); |
| // Because the job jar is a "dummy" jar, we need to include the jar with |
| // DistributedCacheChecker or it won't be able to find it |
| Path distributedCacheCheckerJar = new Path( |
| JarFinder.getJar(DistributedCacheChecker.class)); |
| job.addFileToClassPath(distributedCacheCheckerJar.makeQualified( |
| localFs.getUri(), distributedCacheCheckerJar.getParent())); |
| |
| job.setMapperClass(DistributedCacheChecker.class); |
| job.setOutputFormatClass(NullOutputFormat.class); |
| |
| FileInputFormat.setInputPaths(job, first); |
| // Creates the Job Configuration |
| job.addCacheFile( |
| new URI(first.toUri().toString() + "#distributed.first.symlink")); |
| job.addFileToClassPath(second); |
| // The AppMaster jar itself |
| job.addFileToClassPath( |
| APP_JAR.makeQualified(localFs.getUri(), APP_JAR.getParent())); |
| job.addArchiveToClassPath(third); |
| job.addCacheArchive(fourth.toUri()); |
| job.setMaxMapAttempts(1); // speed up failures |
| |
| job.submit(); |
| String trackingUrl = job.getTrackingURL(); |
| String jobId = job.getJobID().toString(); |
| Assert.assertTrue(job.waitForCompletion(false)); |
| Assert.assertTrue("Tracking URL was " + trackingUrl + |
| " but didn't Match Job ID " + jobId , |
| trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/")); |
| } |
| |
| @Test (timeout = 30000) |
| public void testDistributedCache() throws Exception { |
| // Test with a local (file:///) Job Jar |
| Path localJobJarPath = makeJobJarWithLib(TEST_ROOT_DIR.toUri().toString()); |
| _testDistributedCache(localJobJarPath.toUri().toString()); |
| |
| // Test with a remote (hdfs://) Job Jar |
| Path remoteJobJarPath = new Path(remoteFs.getUri().toString() + "/", |
| localJobJarPath.getName()); |
| remoteFs.moveFromLocalFile(localJobJarPath, remoteJobJarPath); |
| File localJobJarFile = new File(localJobJarPath.toUri().toString()); |
| if (localJobJarFile.exists()) { // just to make sure |
| localJobJarFile.delete(); |
| } |
| _testDistributedCache(remoteJobJarPath.toUri().toString()); |
| } |
| |
| private Path createTempFile(String filename, String contents) |
| throws IOException { |
| Path path = new Path(TEST_ROOT_DIR, filename); |
| FSDataOutputStream os = localFs.create(path); |
| os.writeBytes(contents); |
| os.close(); |
| localFs.setPermission(path, new FsPermission("700")); |
| return path; |
| } |
| |
| private Path makeJar(Path p, int index) throws FileNotFoundException, |
| IOException { |
| FileOutputStream fos = |
| new FileOutputStream(new File(p.toUri().getPath())); |
| JarOutputStream jos = new JarOutputStream(fos); |
| ZipEntry ze = new ZipEntry("distributed.jar.inside" + index); |
| jos.putNextEntry(ze); |
| jos.write(("inside the jar!" + index).getBytes()); |
| jos.closeEntry(); |
| jos.close(); |
| localFs.setPermission(p, new FsPermission("700")); |
| return p; |
| } |
| |
| private Path makeJobJarWithLib(String testDir) throws FileNotFoundException, |
| IOException{ |
| Path jobJarPath = new Path(testDir, "thejob.jar"); |
| FileOutputStream fos = |
| new FileOutputStream(new File(jobJarPath.toUri().getPath())); |
| JarOutputStream jos = new JarOutputStream(fos); |
| // Have to put in real jar files or it will complain |
| createAndAddJarToJar(jos, new File( |
| new Path(testDir, "lib1.jar").toUri().getPath())); |
| createAndAddJarToJar(jos, new File( |
| new Path(testDir, "lib2.jar").toUri().getPath())); |
| jos.close(); |
| localFs.setPermission(jobJarPath, new FsPermission("700")); |
| return jobJarPath; |
| } |
| |
| private void createAndAddJarToJar(JarOutputStream jos, File jarFile) |
| throws FileNotFoundException, IOException { |
| FileOutputStream fos2 = new FileOutputStream(jarFile); |
| JarOutputStream jos2 = new JarOutputStream(fos2); |
| // Have to have at least one entry or it will complain |
| ZipEntry ze = new ZipEntry("lib1.inside"); |
| jos2.putNextEntry(ze); |
| jos2.closeEntry(); |
| jos2.close(); |
| ze = new ZipEntry("lib/" + jarFile.getName()); |
| jos.putNextEntry(ze); |
| FileInputStream in = new FileInputStream(jarFile); |
| byte buf[] = new byte[1024]; |
| int numRead; |
| do { |
| numRead = in.read(buf); |
| if (numRead >= 0) { |
| jos.write(buf, 0, numRead); |
| } |
| } while (numRead != -1); |
| in.close(); |
| jos.closeEntry(); |
| jarFile.delete(); |
| } |
| } |
