下面列出了怎么用org.apache.hadoop.mapreduce.v2.api.records.JobId的API类实例代码及写法，或者点击链接到github查看源代码。
@Test
public void testTaskAttemptsDefault() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
for (Task task : jobsMap.get(id).getTasks().values()) {
String tid = MRApps.toString(task.getID());
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("tasks").path(tid).path("attempts")
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
verifyAMTaskAttempts(json, task);
}
}
}
@Test
public void testJobCounters() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("counters")
.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("jobCounters");
verifyAMJobCounters(info, jobsMap.get(id));
}
}
@Test
public void testTaskAttempts() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
for (Task task : jobsMap.get(id).getTasks().values()) {
String tid = MRApps.toString(task.getID());
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("tasks").path(tid).path("attempts")
.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
verifyAMTaskAttempts(json, task);
}
}
}
private AtomicInteger containerNeed(TaskId taskID) {
JobId jobID = taskID.getJobId();
TaskType taskType = taskID.getTaskType();
ConcurrentMap<JobId, AtomicInteger> relevantMap
= taskType == TaskType.MAP ? mapContainerNeeds : reduceContainerNeeds;
AtomicInteger result = relevantMap.get(jobID);
if (result == null) {
relevantMap.putIfAbsent(jobID, new AtomicInteger(0));
result = relevantMap.get(jobID);
}
return result;
}
protected DataStatistics dataStatisticsForTask(TaskId taskID) {
JobId jobID = taskID.getJobId();
Job job = context.getJob(jobID);
if (job == null) {
return null;
}
Task task = job.getTask(taskID);
if (task == null) {
return null;
}
return task.getType() == TaskType.MAP
? mapperStatistics.get(job)
: task.getType() == TaskType.REDUCE
? reducerStatistics.get(job)
: null;
}
@Override
public Job getFullJob(JobId jobId) {
if (LOG.isDebugEnabled()) {
LOG.debug("Looking for Job " + jobId);
}
try {
HistoryFileInfo fileInfo = hsManager.getFileInfo(jobId);
Job result = null;
if (fileInfo != null) {
result = loadedJobCache.get(jobId);
if (result == null) {
result = loadJob(fileInfo);
} else if(fileInfo.isDeleted()) {
loadedJobCache.remove(jobId);
result = null;
}
} else {
loadedJobCache.remove(jobId);
}
return result;
} catch (IOException e) {
throw new YarnRuntimeException(e);
}
}
private static StubbedJob createStubbedJob(Configuration conf,
Dispatcher dispatcher, int numSplits, AppContext appContext) {
JobID jobID = JobID.forName("job_1234567890000_0001");
JobId jobId = TypeConverter.toYarn(jobID);
if (appContext == null) {
appContext = mock(AppContext.class);
when(appContext.hasSuccessfullyUnregistered()).thenReturn(true);
}
StubbedJob job = new StubbedJob(jobId,
ApplicationAttemptId.newInstance(ApplicationId.newInstance(0, 0), 0),
conf,dispatcher.getEventHandler(), true, "somebody", numSplits, appContext);
dispatcher.register(JobEventType.class, job);
EventHandler mockHandler = mock(EventHandler.class);
dispatcher.register(TaskEventType.class, mockHandler);
dispatcher.register(org.apache.hadoop.mapreduce.jobhistory.EventType.class,
mockHandler);
dispatcher.register(JobFinishEvent.Type.class, mockHandler);
return job;
}
/**
* This method tries to extract all Map OR Reduce attempt Task Reports for a given Job Id
* @param taskType, TaskType {MAP|REDUCE}
* @param jobId, the Job Id for which all Task Reports requires to be extracted
* @return, Map<TaskId, TaskReport>
* @throws IOException
*/
public Map<TaskId, TaskReport> getTaskTypeWiseTaskReports(TaskType taskType, JobId jobId) throws IOException{
Map<TaskId, TaskReport> reports = new HashMap<TaskId, TaskReport>();
TaskReport report;
//Attempting to extract Task Type wise Attempt Reports
boolean rme = false;
int id = 0;
do{
try{
report = getTaskReport(jobId, id, taskType);
TaskId taskId = MRBuilderUtils.newTaskId(jobId, id, taskType);
reports.put(taskId, report);
id++;
}catch(RemoteException re){
rme = true;
}
}while(!rme);
return reports;
}
private ContainerRequestEvent
createReq(JobId jobId, int taskAttemptId, int memory, String[] hosts,
boolean earlierFailedAttempt, boolean reduce) {
TaskId taskId;
if (reduce) {
taskId = MRBuilderUtils.newTaskId(jobId, 0, TaskType.REDUCE);
} else {
taskId = MRBuilderUtils.newTaskId(jobId, 0, TaskType.MAP);
}
TaskAttemptId attemptId = MRBuilderUtils.newTaskAttemptId(taskId,
taskAttemptId);
Resource containerNeed = Resource.newInstance(memory, 1);
if (earlierFailedAttempt) {
return ContainerRequestEvent
.createContainerRequestEventForFailedContainer(attemptId,
containerNeed);
}
return new ContainerRequestEvent(attemptId, containerNeed, hosts,
new String[] { NetworkTopology.DEFAULT_RACK });
}
@Test
public void testJobAttemptsDefault() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("history")
.path("mapreduce").path("jobs").path(jobId).path("jobattempts")
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("jobAttempts");
verifyHsJobAttempts(info, appContext.getJob(id));
}
}
@Test
public void testTaskIdDefault() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
for (Task task : jobsMap.get(id).getTasks().values()) {
String tid = MRApps.toString(task.getID());
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("tasks").path(tid)
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("task");
verifyAMSingleTask(info, task);
}
}
}
@Test
public void testJobCountersDefault() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("counters/").get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("jobCounters");
verifyAMJobCounters(info, jobsMap.get(id));
}
}
@Test
public void testJobAttempts() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("history")
.path("mapreduce").path("jobs").path(jobId).path("jobattempts")
.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("jobAttempts");
verifyHsJobAttempts(info, appContext.getJob(id));
}
}
@Test
public void testJobConfSlash() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("conf/")
.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("conf");
verifyAMJobConf(info, jobsMap.get(id));
}
}
private static JobsPair split(Map<JobId, Job> mocked) throws IOException {
JobsPair ret = new JobsPair();
ret.full = Maps.newHashMap();
ret.partial = Maps.newHashMap();
for(Map.Entry<JobId, Job> entry: mocked.entrySet()) {
JobId id = entry.getKey();
Job j = entry.getValue();
MockCompletedJob mockJob = new MockCompletedJob(j);
// use MockCompletedJob to set everything below to make sure
// consistent with what history server would do
ret.full.put(id, mockJob);
JobReport report = mockJob.getReport();
JobIndexInfo info = new JobIndexInfo(report.getStartTime(),
report.getFinishTime(), mockJob.getUserName(), mockJob.getName(), id,
mockJob.getCompletedMaps(), mockJob.getCompletedReduces(),
String.valueOf(mockJob.getState()));
info.setJobStartTime(report.getStartTime());
info.setQueueName(mockJob.getQueueName());
ret.partial.put(id, new PartialJob(info, id));
}
return ret;
}
@Test
public void testJobAttemptsDefault() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("history")
.path("mapreduce").path("jobs").path(jobId).path("jobattempts")
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("jobAttempts");
verifyHsJobAttempts(info, appContext.getJob(id));
}
}
/**
* Simple test PartialJob
*/
@Test(timeout = 3000)
public void testPartialJob() throws Exception {
JobId jobId = new JobIdPBImpl();
jobId.setId(0);
JobIndexInfo jii = new JobIndexInfo(0L, System.currentTimeMillis(), "user",
"jobName", jobId, 3, 2, "JobStatus");
PartialJob test = new PartialJob(jii, jobId);
assertEquals(1.0f, test.getProgress(), 0.001);
assertNull(test.getAllCounters());
assertNull(test.getTasks());
assertNull(test.getTasks(TaskType.MAP));
assertNull(test.getTask(new TaskIdPBImpl()));
assertNull(test.getTaskAttemptCompletionEvents(0, 100));
assertNull(test.getMapAttemptCompletionEvents(0, 100));
assertTrue(test.checkAccess(UserGroupInformation.getCurrentUser(), null));
assertNull(test.getAMInfos());
}
@Test (timeout = 30000)
public void testDeletionofStagingOnKill() throws IOException {
conf.set(MRJobConfig.MAPREDUCE_JOB_DIR, stagingJobDir);
fs = mock(FileSystem.class);
when(fs.delete(any(Path.class), anyBoolean())).thenReturn(true);
//Staging Dir exists
String user = UserGroupInformation.getCurrentUser().getShortUserName();
Path stagingDir = MRApps.getStagingAreaDir(conf, user);
when(fs.exists(stagingDir)).thenReturn(true);
ApplicationId appId = ApplicationId.newInstance(System.currentTimeMillis(),
0);
ApplicationAttemptId attemptId = ApplicationAttemptId.newInstance(appId, 0);
JobId jobid = recordFactory.newRecordInstance(JobId.class);
jobid.setAppId(appId);
ContainerAllocator mockAlloc = mock(ContainerAllocator.class);
MRAppMaster appMaster = new TestMRApp(attemptId, mockAlloc);
appMaster.init(conf);
//simulate the process being killed
MRAppMaster.MRAppMasterShutdownHook hook =
new MRAppMaster.MRAppMasterShutdownHook(appMaster);
hook.run();
verify(fs, times(0)).delete(stagingJobPath, true);
}
@Test
public void testJobAttemptsXML() throws Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("history")
.path("mapreduce").path("jobs").path(jobId).path("jobattempts")
.accept(MediaType.APPLICATION_XML).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_XML_TYPE, response.getType());
String xml = response.getEntity(String.class);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
Document dom = db.parse(is);
NodeList attempts = dom.getElementsByTagName("jobAttempts");
assertEquals("incorrect number of elements", 1, attempts.getLength());
NodeList info = dom.getElementsByTagName("jobAttempt");
verifyHsJobAttemptsXML(info, appContext.getJob(id));
}
}
@Test
public void testQueueNamePercentEncoding() throws IOException {
JobIndexInfo info = new JobIndexInfo();
JobID oldJobId = JobID.forName(JOB_ID);
JobId jobId = TypeConverter.toYarn(oldJobId);
info.setJobId(jobId);
info.setSubmitTime(Long.parseLong(SUBMIT_TIME));
info.setUser(USER_NAME);
info.setJobName(JOB_NAME);
info.setFinishTime(Long.parseLong(FINISH_TIME));
info.setNumMaps(Integer.parseInt(NUM_MAPS));
info.setNumReduces(Integer.parseInt(NUM_REDUCES));
info.setJobStatus(JOB_STATUS);
info.setQueueName(QUEUE_NAME_WITH_DELIMITER);
info.setJobStartTime(Long.parseLong(JOB_START_TIME));
String jobHistoryFile = FileNameIndexUtils.getDoneFileName(info);
Assert.assertTrue("Queue name not encoded correctly into job history file",
jobHistoryFile.contains(QUEUE_NAME_WITH_DELIMITER_ESCAPE));
}
protected DataStatistics dataStatisticsForTask(TaskId taskID) {
JobId jobID = taskID.getJobId();
Job job = context.getJob(jobID);
if (job == null) {
return null;
}
Task task = job.getTask(taskID);
if (task == null) {
return null;
}
return task.getType() == TaskType.MAP
? mapperStatistics.get(job)
: task.getType() == TaskType.REDUCE
? reducerStatistics.get(job)
: null;
}
@Override
public GetJobReportResponse getJobReport(GetJobReportRequest request)
throws IOException {
JobId jobId = request.getJobId();
Job job = verifyAndGetJob(jobId, false);
GetJobReportResponse response = recordFactory.newRecordInstance(GetJobReportResponse.class);
if (job != null) {
response.setJobReport(job.getReport());
} else {
response.setJobReport(null);
}
return response;
}
@Override
public synchronized void setJobId(JobId jobId) {
maybeInitBuilder();
if (jobId == null)
builder.clearJobId();
this.jobId = jobId;
}
@Test (timeout = 1000)
public void testEviction() throws InterruptedException {
int maxSize = 2;
JobListCache cache = new JobListCache(maxSize, 1000);
JobId jobId1 = MRBuilderUtils.newJobId(1, 1, 1);
HistoryFileInfo fileInfo1 = Mockito.mock(HistoryFileInfo.class);
Mockito.when(fileInfo1.getJobId()).thenReturn(jobId1);
JobId jobId2 = MRBuilderUtils.newJobId(2, 2, 2);
HistoryFileInfo fileInfo2 = Mockito.mock(HistoryFileInfo.class);
Mockito.when(fileInfo2.getJobId()).thenReturn(jobId2);
JobId jobId3 = MRBuilderUtils.newJobId(3, 3, 3);
HistoryFileInfo fileInfo3 = Mockito.mock(HistoryFileInfo.class);
Mockito.when(fileInfo3.getJobId()).thenReturn(jobId3);
cache.addIfAbsent(fileInfo1);
cache.addIfAbsent(fileInfo2);
cache.addIfAbsent(fileInfo3);
Collection <HistoryFileInfo> values;
for (int i = 0; i < 9; i++) {
values = cache.values();
if (values.size() > maxSize) {
Thread.sleep(100);
} else {
assertFalse("fileInfo1 should have been evicted",
values.contains(fileInfo1));
return;
}
}
fail("JobListCache didn't delete the extra entry");
}
@Test(timeout=20000)
public void testKilledDuringSetup() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer = new StubbedOutputCommitter() {
@Override
public synchronized void setupJob(JobContext jobContext)
throws IOException {
while (!Thread.interrupted()) {
try {
wait();
} catch (InterruptedException e) {
}
}
}
};
CommitterEventHandler commitHandler =
createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createStubbedJob(conf, dispatcher, 2, null);
JobId jobId = job.getID();
job.handle(new JobEvent(jobId, JobEventType.JOB_INIT));
assertJobState(job, JobStateInternal.INITED);
job.handle(new JobStartEvent(jobId));
assertJobState(job, JobStateInternal.SETUP);
job.handle(new JobEvent(job.getID(), JobEventType.JOB_KILL));
assertJobState(job, JobStateInternal.KILLED);
dispatcher.stop();
commitHandler.stop();
}
@Test(timeout=20000)
public void testKilledDuringKillAbort() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer = new StubbedOutputCommitter() {
@Override
public synchronized void abortJob(JobContext jobContext, State state)
throws IOException {
while (!Thread.interrupted()) {
try {
wait();
} catch (InterruptedException e) {
}
}
}
};
CommitterEventHandler commitHandler =
createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createStubbedJob(conf, dispatcher, 2, null);
JobId jobId = job.getID();
job.handle(new JobEvent(jobId, JobEventType.JOB_INIT));
assertJobState(job, JobStateInternal.INITED);
job.handle(new JobStartEvent(jobId));
assertJobState(job, JobStateInternal.SETUP);
job.handle(new JobEvent(jobId, JobEventType.JOB_KILL));
assertJobState(job, JobStateInternal.KILL_ABORT);
job.handle(new JobEvent(jobId, JobEventType.JOB_KILL));
assertJobState(job, JobStateInternal.KILLED);
dispatcher.stop();
commitHandler.stop();
}
public static TaskId newTaskId(JobId jobId, int id, TaskType taskType) {
TaskId taskId = Records.newRecord(TaskId.class);
taskId.setJobId(jobId);
taskId.setId(id);
taskId.setTaskType(taskType);
return taskId;
}
private ContainerFailedEvent createFailEvent(JobId jobId, int taskAttemptId,
String host, boolean reduce) {
TaskId taskId;
if (reduce) {
taskId = MRBuilderUtils.newTaskId(jobId, 0, TaskType.REDUCE);
} else {
taskId = MRBuilderUtils.newTaskId(jobId, 0, TaskType.MAP);
}
TaskAttemptId attemptId = MRBuilderUtils.newTaskAttemptId(taskId,
taskAttemptId);
return new ContainerFailedEvent(attemptId, host);
}
@Test
public void testTaskIdXML() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
for (Task task : jobsMap.get(id).getTasks().values()) {
String tid = MRApps.toString(task.getID());
ClientResponse response = r.path("ws").path("v1").path("history")
.path("mapreduce").path("jobs").path(jobId).path("tasks").path(tid)
.accept(MediaType.APPLICATION_XML).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_XML_TYPE, response.getType());
String xml = response.getEntity(String.class);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
Document dom = db.parse(is);
NodeList nodes = dom.getElementsByTagName("task");
for (int i = 0; i < nodes.getLength(); i++) {
Element element = (Element) nodes.item(i);
verifyHsSingleTaskXML(element, task);
}
}
}
}
@Override
public GetCountersResponse getCounters(GetCountersRequest request)
throws IOException {
JobId jobId = request.getJobId();
Job job = verifyAndGetJob(jobId, true);
GetCountersResponse response = recordFactory.newRecordInstance(GetCountersResponse.class);
response.setCounters(TypeConverter.toYarn(job.getAllCounters()));
return response;
}