@SuppressWarnings("resource")
private void testDeletionofStagingOnUnregistrationFailure(
int maxAttempts, boolean shouldHaveDeleted) 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(0, 1);
ApplicationAttemptId attemptId = ApplicationAttemptId.newInstance(appId, 1);
JobId jobid = recordFactory.newRecordInstance(JobId.class);
jobid.setAppId(appId);
TestMRApp appMaster = new TestMRApp(attemptId, null, JobStateInternal.RUNNING, maxAttempts);
appMaster.crushUnregistration = true;
appMaster.init(conf);
appMaster.start();
appMaster.shutDownJob();
((RunningAppContext) appMaster.getContext()).computeIsLastAMRetry();
if (shouldHaveDeleted) {
Assert.assertEquals(new Boolean(true), appMaster.isLastAMRetry());
verify(fs).delete(stagingJobPath, true);
} else {
Assert.assertEquals(new Boolean(false), appMaster.isLastAMRetry());
verify(fs, never()).delete(stagingJobPath, true);
}
}
@Test
public void testDeletionofStaging() 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);
Assert.assertTrue(MRJobConfig.DEFAULT_MR_AM_MAX_ATTEMPTS > 1);
MRAppMaster appMaster =
new TestMRApp(
attemptId, mockAlloc, JobStateInternal.RUNNING, MRJobConfig.DEFAULT_MR_AM_MAX_ATTEMPTS);
appMaster.init(conf);
appMaster.start();
appMaster.shutDownJob();
// test whether notifyIsLastAMRetry called
Assert.assertEquals(true, ((TestMRApp) appMaster).getTestIsLastAMRetry());
verify(fs).delete(stagingJobPath, true);
}
// mostly useful for parsing task/attempt id like strings
public static JobId toJobID(String prefix, String s, Iterator<String> it) {
ApplicationId appId = toAppID(prefix, s, it);
shouldHaveNext(prefix, s, it);
JobId jobId = RecordFactoryProvider.getRecordFactory(null).newRecordInstance(JobId.class);
jobId.setAppId(appId);
jobId.setId(Integer.parseInt(it.next()));
return jobId;
}
@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, 4);
appMaster.init(conf);
// simulate the process being killed
MRAppMaster.MRAppMasterShutdownHook hook = new MRAppMaster.MRAppMasterShutdownHook(appMaster);
hook.run();
verify(fs, times(0)).delete(stagingJobPath, true);
}