/**
* Tests job user-log directory deletion.
*
* <p>Adds two jobs for log deletion. One with one hour retain hours, other with two retain hours.
* After an hour, TaskLogCleanupThread.processCompletedJobs() call, makes sure job with 1hr retain
* hours is removed and other is retained. After one more hour, job with 2hr retain hours is also
* removed.
*
* @throws IOException
*/
@Test
public void testJobLogCleanup() throws IOException {
File jobUserlog1 = localizeJob(jobid1);
File jobUserlog2 = localizeJob(jobid2);
// add job user log directory for deletion, with 2 hours for deletion
jobFinished(jobid1, 2);
// add the job for deletion with one hour as retain hours
jobFinished(jobid2, 1);
// remove old logs and see jobid1 is not removed and jobid2 is removed
myClock.advance(ONE_HOUR);
userLogCleaner.processCompletedJobs();
assertTrue(jobUserlog1 + " got deleted", jobUserlog1.exists());
assertFalse(jobUserlog2 + " still exists.", jobUserlog2.exists());
myClock.advance(ONE_HOUR);
// remove old logs and see jobid1 is removed now
userLogCleaner.processCompletedJobs();
assertFalse(jobUserlog1 + " still exists.", jobUserlog1.exists());
}
private void startTT(JobConf conf) throws IOException, InterruptedException {
myClock = new FakeClock(); // clock is reset.
String localdirs = TEST_ROOT_DIR + "/userlogs/local/0," + TEST_ROOT_DIR + "/userlogs/local/1";
conf.set(JobConf.MAPRED_LOCAL_DIR_PROPERTY, localdirs);
tt = new TaskTracker();
tt.setConf(new JobConf(conf));
LocalDirAllocator localDirAllocator = new LocalDirAllocator("mapred.local.dir");
tt.setLocalDirAllocator(localDirAllocator);
LocalStorage localStorage = new LocalStorage(conf.getLocalDirs());
localStorage.checkLocalDirs();
tt.setLocalStorage(localStorage);
localizer =
new Localizer(FileSystem.get(conf), conf.getStrings(JobConf.MAPRED_LOCAL_DIR_PROPERTY));
tt.setLocalizer(localizer);
userLogManager = new UtilsForTests.InLineUserLogManager(conf);
TaskController taskController = userLogManager.getTaskController();
taskController.setup(localDirAllocator, localStorage);
tt.setTaskController(taskController);
userLogCleaner = userLogManager.getUserLogCleaner();
userLogCleaner.setClock(myClock);
tt.setUserLogManager(userLogManager);
userLogManager.clearOldUserLogs(conf);
}
/**
* Tests user-log directory cleanup on a TT restart.
*
* <p>Adds job1 deletion before the restart with 2 hour retain hours. Adds job2 for which there
* are no tasks/killJobAction after the restart. Adds job3 for which there is localizeJob followed
* by killJobAction after the restart with 3 hours retain hours. Adds job4 for which there are
* some tasks after the restart.
*
* @throws IOException
* @throws InterruptedException
*/
@Test
public void testUserLogCleanupAfterRestart() throws IOException, InterruptedException {
File jobUserlog1 = localizeJob(jobid1);
File jobUserlog2 = localizeJob(jobid2);
File jobUserlog3 = localizeJob(jobid3);
File jobUserlog4 = localizeJob(jobid4);
// create a some files/dirs in userlog
foo.mkdirs();
bar.createNewFile();
// add the jobid1 for deletion with retain hours = 2
jobFinished(jobid1, 2);
// time is now 1.
myClock.advance(ONE_HOUR);
// Mimic the TaskTracker restart
// Restart the tt with 3 hours as user log retain hours.
// This restart clears the user log directory
// job directories will be added with 3 hours as retain hours.
// i.e. They will be deleted at time 3 as clock will reset after the restart
ttRestarted();
assertFalse(foo.exists());
assertFalse(bar.exists());
assertTrue(jobUserlog1.exists());
assertTrue(jobUserlog2.exists());
assertTrue(jobUserlog3.exists());
assertTrue(jobUserlog4.exists());
myClock.advance(ONE_HOUR);
// time is now 1.
userLogCleaner.processCompletedJobs();
assertTrue(jobUserlog1.exists());
assertTrue(jobUserlog2.exists());
assertTrue(jobUserlog3.exists());
assertTrue(jobUserlog4.exists());
// mimic localizeJob followed KillJobAction for jobid3
// add the job for deletion with retainhours = 3.
// jobid3 should be deleted at time 4.
jobUserlog3 = localizeJob(jobid3);
jobFinished(jobid3, 3);
// mimic localizeJob for jobid4
jobUserlog4 = localizeJob(jobid4);
// do cleanup
myClock.advance(2 * ONE_HOUR);
// time is now 3.
userLogCleaner.processCompletedJobs();
// jobid1 and jobid2 will be deleted
assertFalse(jobUserlog1.exists());
assertFalse(jobUserlog2.exists());
assertTrue(jobUserlog3.exists());
assertTrue(jobUserlog4.exists());
myClock.advance(ONE_HOUR);
// time is now 4.
// do cleanup again
userLogCleaner.processCompletedJobs();
// jobid3 will be deleted
assertFalse(jobUserlog1.exists());
assertFalse(jobUserlog2.exists());
assertFalse(jobUserlog3.exists());
assertTrue(jobUserlog4.exists());
}