Examples with MRApp org.apache.hadoop.mapreduce.v2.app.MRApp used on opensource projects

Example 1 with MRApp

use of org.apache.hadoop.mapreduce.v2.app.MRApp in project hadoop by apache.

the class TestSpeculativeExecutionWithMRApp method testSepculateSuccessfulWithUpdateEvents.

@Test
public void testSepculateSuccessfulWithUpdateEvents() throws Exception {
    Clock actualClock = SystemClock.getInstance();
    final ControlledClock clock = new ControlledClock(actualClock);
    clock.setTime(System.currentTimeMillis());
    MRApp app = new MRApp(NUM_MAPPERS, NUM_REDUCERS, false, "test", true, clock);
    Job job = app.submit(new Configuration(), true, true);
    app.waitForState(job, JobState.RUNNING);
    Map<TaskId, Task> tasks = job.getTasks();
    Assert.assertEquals("Num tasks is not correct", NUM_MAPPERS + NUM_REDUCERS, tasks.size());
    Iterator<Task> taskIter = tasks.values().iterator();
    while (taskIter.hasNext()) {
        app.waitForState(taskIter.next(), TaskState.RUNNING);
    }
    // Process the update events
    clock.setTime(System.currentTimeMillis() + 1000);
    EventHandler appEventHandler = app.getContext().getEventHandler();
    for (Map.Entry<TaskId, Task> mapTask : tasks.entrySet()) {
        for (Map.Entry<TaskAttemptId, TaskAttempt> taskAttempt : mapTask.getValue().getAttempts().entrySet()) {
            TaskAttemptStatus status = createTaskAttemptStatus(taskAttempt.getKey(), (float) 0.5, TaskAttemptState.RUNNING);
            TaskAttemptStatusUpdateEvent event = new TaskAttemptStatusUpdateEvent(taskAttempt.getKey(), status);
            appEventHandler.handle(event);
        }
    }
    Task speculatedTask = null;
    int numTasksToFinish = NUM_MAPPERS + NUM_REDUCERS - 1;
    clock.setTime(System.currentTimeMillis() + 1000);
    for (Map.Entry<TaskId, Task> task : tasks.entrySet()) {
        for (Map.Entry<TaskAttemptId, TaskAttempt> taskAttempt : task.getValue().getAttempts().entrySet()) {
            if (numTasksToFinish > 0) {
                appEventHandler.handle(new TaskAttemptEvent(taskAttempt.getKey(), TaskAttemptEventType.TA_DONE));
                appEventHandler.handle(new TaskAttemptEvent(taskAttempt.getKey(), TaskAttemptEventType.TA_CONTAINER_COMPLETED));
                numTasksToFinish--;
                app.waitForState(taskAttempt.getValue(), TaskAttemptState.SUCCEEDED);
            } else {
                // The last task is chosen for speculation
                TaskAttemptStatus status = createTaskAttemptStatus(taskAttempt.getKey(), (float) 0.75, TaskAttemptState.RUNNING);
                speculatedTask = task.getValue();
                TaskAttemptStatusUpdateEvent event = new TaskAttemptStatusUpdateEvent(taskAttempt.getKey(), status);
                appEventHandler.handle(event);
            }
        }
    }
    clock.setTime(System.currentTimeMillis() + 15000);
    for (Map.Entry<TaskId, Task> task : tasks.entrySet()) {
        for (Map.Entry<TaskAttemptId, TaskAttempt> taskAttempt : task.getValue().getAttempts().entrySet()) {
            if (taskAttempt.getValue().getState() != TaskAttemptState.SUCCEEDED) {
                TaskAttemptStatus status = createTaskAttemptStatus(taskAttempt.getKey(), (float) 0.75, TaskAttemptState.RUNNING);
                TaskAttemptStatusUpdateEvent event = new TaskAttemptStatusUpdateEvent(taskAttempt.getKey(), status);
                appEventHandler.handle(event);
            }
        }
    }
    final Task speculatedTaskConst = speculatedTask;
    GenericTestUtils.waitFor(new Supplier<Boolean>() {

        @Override
        public Boolean get() {
            if (speculatedTaskConst.getAttempts().size() != 2) {
                clock.setTime(System.currentTimeMillis() + 1000);
                return false;
            } else {
                return true;
            }
        }
    }, 1000, 60000);
    TaskAttempt[] ta = makeFirstAttemptWin(appEventHandler, speculatedTask);
    verifySpeculationMessage(app, ta);
    app.waitForState(Service.STATE.STOPPED);
}

Example 2 with MRApp

use of org.apache.hadoop.mapreduce.v2.app.MRApp in project hadoop by apache.

the class TestJobHistoryEvents method testJobHistoryEventHandlerIsFirstServiceToStop.

@Test
public void testJobHistoryEventHandlerIsFirstServiceToStop() {
    MRApp app = new MRAppWithSpecialHistoryHandler(1, 0, true, this.getClass().getName(), true);
    Configuration conf = new Configuration();
    app.init(conf);
    Service[] services = app.getServices().toArray(new Service[0]);
    // Verifying that it is the last to be added is same as verifying that it is
    // the first to be stopped. CompositeService related tests already validate
    // this.
    Assert.assertEquals("JobHistoryEventHandler", services[services.length - 1].getName());
}

Example 3 with MRApp

use of org.apache.hadoop.mapreduce.v2.app.MRApp in project hadoop by apache.

the class TestJobHistoryParsing method testScanningOldDirs.

@Test(timeout = 50000)
public void testScanningOldDirs() throws Exception {
    LOG.info("STARTING testScanningOldDirs");
    try {
        Configuration conf = new Configuration();
        conf.setClass(NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, MyResolver.class, DNSToSwitchMapping.class);
        RackResolver.init(conf);
        MRApp app = new MRAppWithHistory(1, 1, true, this.getClass().getName(), true);
        app.submit(conf);
        Job job = app.getContext().getAllJobs().values().iterator().next();
        JobId jobId = job.getID();
        LOG.info("JOBID is " + TypeConverter.fromYarn(jobId).toString());
        app.waitForState(job, JobState.SUCCEEDED);
        // make sure all events are flushed
        app.waitForState(Service.STATE.STOPPED);
        HistoryFileManagerForTest hfm = new HistoryFileManagerForTest();
        hfm.init(conf);
        HistoryFileInfo fileInfo = hfm.getFileInfo(jobId);
        Assert.assertNotNull("Unable to locate job history", fileInfo);
        // force the manager to "forget" the job
        hfm.deleteJobFromJobListCache(fileInfo);
        final int msecPerSleep = 10;
        int msecToSleep = 10 * 1000;
        while (fileInfo.isMovePending() && msecToSleep > 0) {
            Assert.assertTrue(!fileInfo.didMoveFail());
            msecToSleep -= msecPerSleep;
            Thread.sleep(msecPerSleep);
        }
        Assert.assertTrue("Timeout waiting for history move", msecToSleep > 0);
        fileInfo = hfm.getFileInfo(jobId);
        hfm.stop();
        Assert.assertNotNull("Unable to locate old job history", fileInfo);
        Assert.assertTrue("HistoryFileManager not shutdown properly", hfm.moveToDoneExecutor.isTerminated());
    } finally {
        LOG.info("FINISHED testScanningOldDirs");
    }
}

Example 4 with MRApp

use of org.apache.hadoop.mapreduce.v2.app.MRApp in project hadoop by apache.

the class TestJobHistoryParsing method checkHistoryParsing.

private void checkHistoryParsing(final int numMaps, final int numReduces, final int numSuccessfulMaps) throws Exception {
    Configuration conf = new Configuration();
    conf.set(MRJobConfig.USER_NAME, System.getProperty("user.name"));
    long amStartTimeEst = System.currentTimeMillis();
    conf.setClass(NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, MyResolver.class, DNSToSwitchMapping.class);
    RackResolver.init(conf);
    MRApp app = new MRAppWithHistory(numMaps, numReduces, true, this.getClass().getName(), true);
    app.submit(conf);
    Job job = app.getContext().getAllJobs().values().iterator().next();
    JobId jobId = job.getID();
    LOG.info("JOBID is " + TypeConverter.fromYarn(jobId).toString());
    app.waitForState(job, JobState.SUCCEEDED);
    // make sure all events are flushed
    app.waitForState(Service.STATE.STOPPED);
    String jobhistoryDir = JobHistoryUtils.getHistoryIntermediateDoneDirForUser(conf);
    FileContext fc = null;
    try {
        fc = FileContext.getFileContext(conf);
    } catch (IOException ioe) {
        LOG.info("Can not get FileContext", ioe);
        throw (new Exception("Can not get File Context"));
    }
    if (numMaps == numSuccessfulMaps) {
        String summaryFileName = JobHistoryUtils.getIntermediateSummaryFileName(jobId);
        Path summaryFile = new Path(jobhistoryDir, summaryFileName);
        String jobSummaryString = getJobSummary(fc, summaryFile);
        Assert.assertNotNull(jobSummaryString);
        Assert.assertTrue(jobSummaryString.contains("resourcesPerMap=100"));
        Assert.assertTrue(jobSummaryString.contains("resourcesPerReduce=100"));
        Map<String, String> jobSummaryElements = new HashMap<String, String>();
        StringTokenizer strToken = new StringTokenizer(jobSummaryString, ",");
        while (strToken.hasMoreTokens()) {
            String keypair = strToken.nextToken();
            jobSummaryElements.put(keypair.split("=")[0], keypair.split("=")[1]);
        }
        Assert.assertEquals("JobId does not match", jobId.toString(), jobSummaryElements.get("jobId"));
        Assert.assertEquals("JobName does not match", "test", jobSummaryElements.get("jobName"));
        Assert.assertTrue("submitTime should not be 0", Long.parseLong(jobSummaryElements.get("submitTime")) != 0);
        Assert.assertTrue("launchTime should not be 0", Long.parseLong(jobSummaryElements.get("launchTime")) != 0);
        Assert.assertTrue("firstMapTaskLaunchTime should not be 0", Long.parseLong(jobSummaryElements.get("firstMapTaskLaunchTime")) != 0);
        Assert.assertTrue("firstReduceTaskLaunchTime should not be 0", Long.parseLong(jobSummaryElements.get("firstReduceTaskLaunchTime")) != 0);
        Assert.assertTrue("finishTime should not be 0", Long.parseLong(jobSummaryElements.get("finishTime")) != 0);
        Assert.assertEquals("Mismatch in num map slots", numSuccessfulMaps, Integer.parseInt(jobSummaryElements.get("numMaps")));
        Assert.assertEquals("Mismatch in num reduce slots", numReduces, Integer.parseInt(jobSummaryElements.get("numReduces")));
        Assert.assertEquals("User does not match", System.getProperty("user.name"), jobSummaryElements.get("user"));
        Assert.assertEquals("Queue does not match", "default", jobSummaryElements.get("queue"));
        Assert.assertEquals("Status does not match", "SUCCEEDED", jobSummaryElements.get("status"));
    }
    JobHistory jobHistory = new JobHistory();
    jobHistory.init(conf);
    HistoryFileInfo fileInfo = jobHistory.getJobFileInfo(jobId);
    JobInfo jobInfo;
    long numFinishedMaps;
    synchronized (fileInfo) {
        Path historyFilePath = fileInfo.getHistoryFile();
        FSDataInputStream in = null;
        LOG.info("JobHistoryFile is: " + historyFilePath);
        try {
            in = fc.open(fc.makeQualified(historyFilePath));
        } catch (IOException ioe) {
            LOG.info("Can not open history file: " + historyFilePath, ioe);
            throw (new Exception("Can not open History File"));
        }
        JobHistoryParser parser = new JobHistoryParser(in);
        final EventReader realReader = new EventReader(in);
        EventReader reader = Mockito.mock(EventReader.class);
        if (numMaps == numSuccessfulMaps) {
            reader = realReader;
        } else {
            // Hack!
            final AtomicInteger numFinishedEvents = new AtomicInteger(0);
            Mockito.when(reader.getNextEvent()).thenAnswer(new Answer<HistoryEvent>() {

                public HistoryEvent answer(InvocationOnMock invocation) throws IOException {
                    HistoryEvent event = realReader.getNextEvent();
                    if (event instanceof TaskFinishedEvent) {
                        numFinishedEvents.incrementAndGet();
                    }
                    if (numFinishedEvents.get() <= numSuccessfulMaps) {
                        return event;
                    } else {
                        throw new IOException("test");
                    }
                }
            });
        }
        jobInfo = parser.parse(reader);
        numFinishedMaps = computeFinishedMaps(jobInfo, numMaps, numSuccessfulMaps);
        if (numFinishedMaps != numMaps) {
            Exception parseException = parser.getParseException();
            Assert.assertNotNull("Didn't get expected parse exception", parseException);
        }
    }
    Assert.assertEquals("Incorrect username ", System.getProperty("user.name"), jobInfo.getUsername());
    Assert.assertEquals("Incorrect jobName ", "test", jobInfo.getJobname());
    Assert.assertEquals("Incorrect queuename ", "default", jobInfo.getJobQueueName());
    Assert.assertEquals("incorrect conf path", "test", jobInfo.getJobConfPath());
    Assert.assertEquals("incorrect finishedMap ", numSuccessfulMaps, numFinishedMaps);
    Assert.assertEquals("incorrect finishedReduces ", numReduces, jobInfo.getFinishedReduces());
    Assert.assertEquals("incorrect uberized ", job.isUber(), jobInfo.getUberized());
    Map<TaskID, TaskInfo> allTasks = jobInfo.getAllTasks();
    int totalTasks = allTasks.size();
    Assert.assertEquals("total number of tasks is incorrect  ", (numMaps + numReduces), totalTasks);
    // Verify aminfo
    Assert.assertEquals(1, jobInfo.getAMInfos().size());
    Assert.assertEquals(MRApp.NM_HOST, jobInfo.getAMInfos().get(0).getNodeManagerHost());
    AMInfo amInfo = jobInfo.getAMInfos().get(0);
    Assert.assertEquals(MRApp.NM_PORT, amInfo.getNodeManagerPort());
    Assert.assertEquals(MRApp.NM_HTTP_PORT, amInfo.getNodeManagerHttpPort());
    Assert.assertEquals(1, amInfo.getAppAttemptId().getAttemptId());
    Assert.assertEquals(amInfo.getAppAttemptId(), amInfo.getContainerId().getApplicationAttemptId());
    Assert.assertTrue(amInfo.getStartTime() <= System.currentTimeMillis() && amInfo.getStartTime() >= amStartTimeEst);
    ContainerId fakeCid = MRApp.newContainerId(-1, -1, -1, -1);
    // Assert at taskAttempt level
    for (TaskInfo taskInfo : allTasks.values()) {
        int taskAttemptCount = taskInfo.getAllTaskAttempts().size();
        Assert.assertEquals("total number of task attempts ", 1, taskAttemptCount);
        TaskAttemptInfo taInfo = taskInfo.getAllTaskAttempts().values().iterator().next();
        Assert.assertNotNull(taInfo.getContainerId());
        // Verify the wrong ctor is not being used. Remove after mrv1 is removed.
        Assert.assertFalse(taInfo.getContainerId().equals(fakeCid));
    }
    // Deep compare Job and JobInfo
    for (Task task : job.getTasks().values()) {
        TaskInfo taskInfo = allTasks.get(TypeConverter.fromYarn(task.getID()));
        Assert.assertNotNull("TaskInfo not found", taskInfo);
        for (TaskAttempt taskAttempt : task.getAttempts().values()) {
            TaskAttemptInfo taskAttemptInfo = taskInfo.getAllTaskAttempts().get(TypeConverter.fromYarn((taskAttempt.getID())));
            Assert.assertNotNull("TaskAttemptInfo not found", taskAttemptInfo);
            Assert.assertEquals("Incorrect shuffle port for task attempt", taskAttempt.getShufflePort(), taskAttemptInfo.getShufflePort());
            if (numMaps == numSuccessfulMaps) {
                Assert.assertEquals(MRApp.NM_HOST, taskAttemptInfo.getHostname());
                Assert.assertEquals(MRApp.NM_PORT, taskAttemptInfo.getPort());
                // Verify rack-name
                Assert.assertEquals("rack-name is incorrect", taskAttemptInfo.getRackname(), RACK_NAME);
            }
        }
    }
    // test output for HistoryViewer
    PrintStream stdps = System.out;
    try {
        System.setOut(new PrintStream(outContent));
        HistoryViewer viewer;
        synchronized (fileInfo) {
            viewer = new HistoryViewer(fc.makeQualified(fileInfo.getHistoryFile()).toString(), conf, true);
        }
        viewer.print();
        for (TaskInfo taskInfo : allTasks.values()) {
            String test = (taskInfo.getTaskStatus() == null ? "" : taskInfo.getTaskStatus()) + " " + taskInfo.getTaskType() + " task list for " + taskInfo.getTaskId().getJobID();
            Assert.assertTrue(outContent.toString().indexOf(test) > 0);
            Assert.assertTrue(outContent.toString().indexOf(taskInfo.getTaskId().toString()) > 0);
        }
    } finally {
        System.setOut(stdps);
    }
}

Example 5 with MRApp

use of org.apache.hadoop.mapreduce.v2.app.MRApp in project hadoop by apache.

the class TestJobHistoryParsing method testJobHistoryMethods.

/**
   * Simple test some methods of JobHistory
   */
@Test(timeout = 20000)
public void testJobHistoryMethods() throws Exception {
    LOG.info("STARTING testJobHistoryMethods");
    try {
        Configuration configuration = new Configuration();
        configuration.setClass(NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, MyResolver.class, DNSToSwitchMapping.class);
        RackResolver.init(configuration);
        MRApp app = new MRAppWithHistory(1, 1, true, this.getClass().getName(), true);
        app.submit(configuration);
        Job job = app.getContext().getAllJobs().values().iterator().next();
        JobId jobId = job.getID();
        LOG.info("JOBID is " + TypeConverter.fromYarn(jobId).toString());
        app.waitForState(job, JobState.SUCCEEDED);
        // make sure job history events are handled
        app.waitForState(Service.STATE.STOPPED);
        JobHistory jobHistory = new JobHistory();
        jobHistory.init(configuration);
        // Method getAllJobs
        Assert.assertEquals(1, jobHistory.getAllJobs().size());
        // and with ApplicationId
        Assert.assertEquals(1, jobHistory.getAllJobs(app.getAppID()).size());
        JobsInfo jobsinfo = jobHistory.getPartialJobs(0L, 10L, null, "default", 0L, System.currentTimeMillis() + 1, 0L, System.currentTimeMillis() + 1, JobState.SUCCEEDED);
        Assert.assertEquals(1, jobsinfo.getJobs().size());
        Assert.assertNotNull(jobHistory.getApplicationAttemptId());
        // test Application Id
        Assert.assertEquals("application_0_0000", jobHistory.getApplicationID().toString());
        Assert.assertEquals("Job History Server", jobHistory.getApplicationName());
        // method does not work
        Assert.assertNull(jobHistory.getEventHandler());
        // method does not work
        Assert.assertNull(jobHistory.getClock());
        // method does not work
        Assert.assertNull(jobHistory.getClusterInfo());
    } finally {
        LOG.info("FINISHED testJobHistoryMethods");
    }
}