def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEquals(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
w.add(b)
w2.add(eb)
logging.debug("RUNNING BROKEN WORKER")
w2.run()
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
def test_worker_executes_fork_handler(self):
class Stub(luigi.Task):
def complete(self):
return False
def run(self):
pass
s = CentralPlannerScheduler()
w = Worker(scheduler=s, worker_processes=2)
w.add(Stub())
w.run()
time.sleep(0.1)
worker_res = [self.worker_queue.get(), self.worker_queue.get(), self.worker_queue.get()]
self.assertIn("both", worker_res)
self.assertIn("master", worker_res)
child_res = [self.child_queue.get(), self.child_queue.get(), self.child_queue.get()]
self.assertIn("both", child_res)
self.assertIn("child", child_res)
self.assertTrue(self.worker_queue.empty())
self.assertTrue(self.child_queue.empty())
def test_interleaved_workers3(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, wait_interval=0.1)
w.add(a)
w2.add(b)
threading.Thread(target=w.run).start()
w2.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_complete_exception(self):
"Tests that a task is still scheduled if its sister task crashes in the complete() method"
class A(DummyTask):
def complete(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
w.add(b)
w.run()
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w2.add(eb))
self.assertTrue(w.add(b))
self.assertTrue(w2.run())
self.assertFalse(b.complete())
self.assertTrue(w.run())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def _run(self, dt, interval):
w = Worker(scheduler=self.sch)
tasks = self.gen_tasks(dt, interval)
map(w.add, tasks)
for t in filter(lambda x: isinstance(x, RunMetricRules), tasks):
if t.handler == 'save_to_mongodb':
if t.filter_rules:
filter_metrics_args = {"require": t, 'filter_rules': t.filter_rules}
# 过滤
filter_metrics = FilterMetrics(**filter_metrics_args)
require_task = filter_metrics
w.add(filter_metrics)
else:
require_task = t
# 保存
kwargs = dict(**self.mongo_conf)
kwargs.update({"require": require_task, "date": dt, 'app_id': self.app_id, 'interval': interval})
save_metrics = SaveMetrics(**kwargs)
w.add(save_metrics)
else:
kwargs = dict(**self.mongo_conf)
kwargs.update({"require": t,
"date": dt,
'app_id': self.app_id,
'interval': interval,
'handler_func': t.handler})
metric_handler = MetricsHandler(**kwargs)
w.add(metric_handler)
w.run()
def test_task_limit_exceeded(self):
w = Worker()
t = ForkBombTask(3, 2)
w.add(t)
w.run()
self.assertFalse(t.complete())
leaf_tasks = [ForkBombTask(3, 2, branch) for branch in [(0, 0, 0), (0, 0, 1), (0, 1, 0), (0, 1, 1)]]
self.assertEquals(3, sum(t.complete() for t in leaf_tasks), "should have gracefully completed as much as possible even though the single last leaf didn't get scheduled")
class AssistantTest(unittest.TestCase):
def run(self, result=None):
self.sch = Scheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.assistant = Worker(scheduler=self.sch, worker_id='Y', assistant=True)
with Worker(scheduler=self.sch, worker_id='X') as w:
self.w = w
super(AssistantTest, self).run(result)
def test_get_work(self):
d = Dummy2Task('123')
self.w.add(d)
self.assertFalse(d.complete())
self.assistant.run()
self.assertTrue(d.complete())
def test_bad_job_type(self):
class Dummy3Task(Dummy2Task):
task_family = 'UnknownTaskFamily'
d = Dummy3Task('123')
self.w.add(d)
self.assertFalse(d.complete())
self.assertFalse(self.assistant.run())
self.assertFalse(d.complete())
self.assertEqual(list(self.sch.task_list('FAILED', '').keys()), [d.task_id])
def test_unimported_job_type(self):
MODULE_CONTENTS = b'''
import luigi
class UnimportedTask(luigi.Task):
def complete(self):
return False
'''
class NotImportedTask(luigi.Task):
task_family = 'UnimportedTask'
task_module = None
task = NotImportedTask()
# verify that it can't run the task without the module info necessary to import it
self.w.add(task)
self.assertFalse(self.assistant.run())
self.assertEqual(list(self.sch.task_list('FAILED', '').keys()), [task.task_id])
# check that it can import with the right module
with temporary_unloaded_module(MODULE_CONTENTS) as task.task_module:
self.w.add(task)
self.assertTrue(self.assistant.run())
self.assertEqual(list(self.sch.task_list('DONE', '').keys()), [task.task_id])
class MultiprocessWorkerTest(unittest.TestCase):
def setUp(self):
self.scheduler = RemoteScheduler()
self.scheduler.add_worker = Mock()
self.scheduler.add_task = Mock()
self.worker = Worker(scheduler=self.scheduler, worker_id='X', worker_processes=2)
def tearDown(self):
self.worker.stop()
def test_positive_path(self):
a = DummyTask("a")
b = DummyTask("b")
class MultipleRequirementTask(DummyTask):
def requires(self):
return [a, b]
c = MultipleRequirementTask("C")
self.assertTrue(self.worker.add(c))
self.scheduler.get_work = Mock(side_effect=[(3, str(a)), (2, str(b)), (1, str(c)), (0, None), (0, None)])
self.assertTrue(self.worker.run())
self.assertTrue(c.has_run)
def test_path_with_task_failures(self):
class FailingTask(DummyTask):
def run(self):
raise Exception("I am failing")
a = FailingTask("a")
b = FailingTask("b")
class MultipleRequirementTask(DummyTask):
def requires(self):
return [a, b]
c = MultipleRequirementTask("C")
self.assertTrue(self.worker.add(c))
self.scheduler.get_work = Mock(side_effect=[(3, str(a)), (2, str(b)), (1, str(c)), (0, None), (0, None)])
self.assertFalse(self.worker.run())
def test_disabled_shutdown_hook(self):
w = Worker(scheduler=self.sch, keep_alive=True, no_install_shutdown_handler=True)
with w:
try:
# try to kill the worker!
os.kill(os.getpid(), signal.SIGUSR1)
except AttributeError:
raise unittest.SkipTest('signal.SIGUSR1 not found on this system')
# try to kill the worker... AGAIN!
t = SuicidalWorker(signal.SIGUSR1)
w.add(t)
w.run()
# task should have stepped away from the ledge, and completed successfully despite all the SIGUSR1 signals
self.assertEqual(list(self.sch.task_list('DONE', '').keys()), [t.task_id])
def test_die_for_non_unique_pending(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(b))
self.assertTrue(w2.add(b))
self.assertEqual(w._get_work()[0], 'A()')
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
w2.stop()
def test_allow_reschedule_with_many_missing_deps(self):
class A(Task):
""" Task that must run twice to succeed """
i = luigi.IntParameter()
runs = 0
def complete(self):
return self.runs >= 2
def run(self):
self.runs += 1
class B(Task):
done = False
def requires(self):
return map(A, range(20))
def complete(self):
return self.done
def run(self):
self.done = True
b = B()
w = Worker(scheduler=self.sch, worker_id='X', max_reschedules=1)
self.assertTrue(w.add(b))
self.assertFalse(w.run())
# For b to be done, we must have rescheduled its dependencies to run them twice
self.assertTrue(b.complete())
self.assertTrue(all(a.complete() for a in b.deps()))
def test_requires_exception(self):
class A(DummyTask):
def requires(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_single_threaded_worker_doesnot_execute_fork_handler(self):
class Stub(luigi.Task):
def complete(self):
return False
def run(self):
pass
s = CentralPlannerScheduler()
w = Worker(scheduler=s, worker_processes=1)
w.add(Stub())
w.run()
time.sleep(0.1)
self.assertTrue(self.worker_queue.empty())
self.assertTrue(self.child_queue.empty())
def invoke_task(godzilla_task, task_id=None, **kwargs):
print godzilla_task, task_id, kwargs
task = tasks[godzilla_task]
kwargs['task_id'] = task_id
task = task.as_luigi(**kwargs)
w = Worker(scheduler=sch)
w.add(task)
try:
w.run()
if not w.run_succeeded:
raise Exception("job failed")
return task.output().path
finally:
w.stop()
class AssistantTest(unittest.TestCase):
def setUp(self):
self.sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X').__enter__()
self.assistant = Worker(scheduler=self.sch, worker_id='Y', assistant=True)
def tearDown(self):
self.w.__exit__(None, None, None)
def test_get_work(self):
d = Dummy2Task('123')
self.w.add(d)
self.assertFalse(d.complete())
self.assistant.run()
self.assertTrue(d.complete())
def test_bad_job_type(self):
class Dummy3Task(Dummy2Task):
task_family = 'UnknownTaskFamily'
d = Dummy3Task('123')
self.w.add(d)
self.assertFalse(d.complete())
self.assertFalse(self.assistant.run())
self.assertFalse(d.complete())
self.assertEqual(list(self.sch.task_list('FAILED', '').keys()), [str(d)])
def test_unimported_job_type(self):
class NotImportedTask(luigi.Task):
task_family = 'UnimportedTask'
task_module = None
task = NotImportedTask()
# verify that it can't run the task without the module info necessary to import it
self.w.add(task)
self.assertFalse(self.assistant.run())
self.assertEqual(list(self.sch.task_list('FAILED', '').keys()), ['UnimportedTask()'])
# check that it can import with the right module
task.task_module = 'dummy_test_module.not_imported'
self.w.add(task)
self.assertTrue(self.assistant.run())
self.assertEqual(list(self.sch.task_list('DONE', '').keys()), ['UnimportedTask()'])
def _test_context_manager(self, force_multiprocessing):
CONTEXT_MANAGER_MODULE = b'''
class MyContextManager(object):
def __init__(self, task_process):
self.task = task_process.task
def __enter__(self):
assert not self.task.run_event.is_set(), "the task should not have run yet"
self.task.enter_event.set()
return self
def __exit__(self, exc_type=None, exc_value=None, traceback=None):
assert self.task.run_event.is_set(), "the task should have run"
self.task.exit_event.set()
'''
class DummyEventRecordingTask(luigi.Task):
def __init__(self, *args, **kwargs):
self.enter_event = multiprocessing.Event()
self.exit_event = multiprocessing.Event()
self.run_event = multiprocessing.Event()
super(DummyEventRecordingTask, self).__init__(*args, **kwargs)
def run(self):
assert self.enter_event.is_set(), "the context manager should have been entered"
assert not self.exit_event.is_set(), "the context manager should not have been exited yet"
assert not self.run_event.is_set(), "the task should not have run yet"
self.run_event.set()
def complete(self):
return self.run_event.is_set()
with temporary_unloaded_module(CONTEXT_MANAGER_MODULE) as module_name:
t = DummyEventRecordingTask()
w = Worker(task_process_context=module_name + '.MyContextManager',
force_multiprocessing=force_multiprocessing)
w.add(t)
self.assertTrue(w.run())
self.assertTrue(t.complete())
self.assertTrue(t.enter_event.is_set())
self.assertTrue(t.exit_event.is_set())
class WorkerEmailTest(EmailTest):
def setUp(self):
super(WorkerEmailTest, self).setUp()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.worker = Worker(scheduler=sch, worker_id="foo")
def test_connection_error(self):
sch = RemoteScheduler(host="this_host_doesnt_exist", port=1337)
worker = Worker(scheduler=sch)
self.waits = 0
def dummy_wait():
self.waits += 1
sch._wait = dummy_wait
class A(DummyTask):
pass
a = A()
self.assertEquals(self.last_email, None)
worker.add(a)
self.assertEquals(self.waits, sch._attempts - 1)
self.assertNotEquals(self.last_email, None)
self.assertEquals(self.last_email[0], "Luigi: Framework error while scheduling %s" % (a,))
def test_complete_error(self):
class A(DummyTask):
def complete(self):
raise Exception("b0rk")
a = A()
self.assertEquals(self.last_email, None)
self.worker.add(a)
self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
self.worker.run()
self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
self.assertFalse(a.has_run)
# We removed the non-boolean check due to bug, this should be brought back in after Christmas /nyman
# def test_complete_return_value(self):
# class A(DummyTask):
# def complete(self):
# return
#
# a = A()
# self.assertEquals(self.last_email, None)
# self.worker.add(a)
# self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
# self.worker.run()
# self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
# self.assertFalse(a.has_run)
def test_run_error(self):
class A(luigi.Task):
def complete(self):
return False
def run(self):
raise Exception("b0rk")
a = A()
self.worker.add(a)
self.assertEquals(self.last_email, None)
self.worker.run()
self.assertEquals(("Luigi: %s FAILED" % (a,)), self.last_email[0])
def test_no_error(self):
class A(DummyTask):
pass
a = A()
self.assertEquals(self.last_email, None)
self.worker.add(a)
self.assertEquals(self.last_email, None)
self.worker.run()
self.assertEquals(self.last_email, None)
self.assertTrue(a.complete())
def luigi_run(task):
sch = RemoteScheduler()
w = Worker(scheduler=sch)
w.add(task)
w.run()
def test_task_limit_not_exceeded(self):
w = Worker()
t = ForkBombTask(3, 2)
w.add(t)
w.run()
self.assertTrue(t.complete())
class WorkerTest(unittest.TestCase):
def setUp(self):
# InstanceCache.disable()
self.sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X')
self.w2 = Worker(scheduler=self.sch, worker_id='Y')
self.time = time.time
def tearDown(self):
if time.time != self.time:
time.time = self.time
self.w.stop()
self.w2.stop()
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
class A(Task):
def run(self):
self.has_run = True
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.w.add(b)
self.w.run()
self.assertTrue(a.has_run)
self.assertTrue(b.has_run)
def test_external_dep(self):
class A(ExternalTask):
def complete(self):
return False
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.w.add(b)
self.w.run()
self.assertFalse(a.has_run)
self.assertFalse(b.has_run)
def test_fail(self):
class A(Task):
def run(self):
self.has_run = True
raise Exception()
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.w.add(b)
self.w.run()
self.assertTrue(a.has_run)
self.assertFalse(b.has_run)
def test_unknown_dep(self):
# see central_planner_test.CentralPlannerTest.test_remove_dep
class A(ExternalTask):
def complete(self):
return False
class C(Task):
def complete(self):
return True
def get_b(dep):
class B(Task):
def requires(self):
return dep
def run(self):
self.has_run = True
def complete(self):
return False
b = B()
b.has_run = False
return b
b_a = get_b(A())
b_c = get_b(C())
self.w.add(b_a)
# So now another worker goes in and schedules C -> B
# This should remove the dep A -> B but will screw up the first worker
self.w2.add(b_c)
self.w.run() # should not run anything - the worker should detect that A is broken
self.assertFalse(b_a.has_run)
# not sure what should happen??
# self.w2.run() # should run B since C is fulfilled
# self.assertTrue(b_c.has_run)
def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEquals(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
w.add(b)
w2.add(eb)
logging.debug("RUNNING BROKEN WORKER")
w2.run()
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEquals(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
w2.add(eb)
w.add(b)
w2.run()
self.assertFalse(b.complete())
w.run()
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers3(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, wait_interval=0.1)
w.add(a)
w2.add(b)
threading.Thread(target=w.run).start()
w2.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_complete_exception(self):
"Tests that a task is still scheduled if its sister task crashes in the complete() method"
class A(DummyTask):
def complete(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
w.add(b)
w.run()
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
class WorkerTest(unittest.TestCase):
def setUp(self):
# InstanceCache.disable()
self.sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X')
self.w2 = Worker(scheduler=self.sch, worker_id='Y')
self.time = time.time
def tearDown(self):
if time.time != self.time:
time.time = self.time
self.w.stop()
self.w2.stop()
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
class A(Task):
def run(self):
self.has_run = True
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertTrue(a.has_run)
self.assertTrue(b.has_run)
def test_stop_getting_new_work(self):
d = DummyTask()
self.w.add(d)
self.assertFalse(d.complete())
self.w.handle_interrupt(signal.SIGUSR1, None)
self.w.run()
self.assertFalse(d.complete())
def test_external_dep(self):
class A(ExternalTask):
def complete(self):
return False
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertFalse(a.has_run)
self.assertFalse(b.has_run)
def test_fail(self):
class A(Task):
def run(self):
self.has_run = True
raise Exception()
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertFalse(self.w.run())
self.assertTrue(a.has_run)
self.assertFalse(b.has_run)
def test_unknown_dep(self):
# see central_planner_test.CentralPlannerTest.test_remove_dep
class A(ExternalTask):
def complete(self):
return False
class C(Task):
def complete(self):
return True
def get_b(dep):
class B(Task):
def requires(self):
return dep
def run(self):
self.has_run = True
def complete(self):
return False
b = B()
b.has_run = False
return b
b_a = get_b(A())
b_c = get_b(C())
self.assertTrue(self.w.add(b_a))
# So now another worker goes in and schedules C -> B
# This should remove the dep A -> B but will screw up the first worker
self.assertTrue(self.w2.add(b_c))
self.assertFalse(self.w.run()) # should not run anything - the worker should detect that A is broken
self.assertFalse(b_a.has_run)
# not sure what should happen??
# self.w2.run() # should run B since C is fulfilled
# self.assertTrue(b_c.has_run)
def test_unfulfilled_dep(self):
class A(Task):
def complete(self):
return self.done
def run(self):
self.done = True
def get_b(a):
class B(A):
def requires(self):
return a
b = B()
b.done = False
a.done = True
return b
a = A()
b = get_b(a)
self.assertTrue(self.w.add(b))
a.done = False
self.w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
def test_avoid_infinite_reschedule(self):
class A(Task):
def complete(self):
return False
class B(Task):
def complete(self):
return False
def requires(self):
return A()
self.assertTrue(self.w.add(B()))
self.assertFalse(self.w.run())
def test_allow_reschedule_with_many_missing_deps(self):
class A(Task):
""" Task that must run twice to succeed """
i = luigi.IntParameter()
runs = 0
def complete(self):
return self.runs >= 2
def run(self):
self.runs += 1
class B(Task):
done = False
def requires(self):
return map(A, range(20))
def complete(self):
return self.done
def run(self):
self.done = True
b = B()
w = Worker(scheduler=self.sch, worker_id='X', max_reschedules=1)
self.assertTrue(w.add(b))
self.assertFalse(w.run())
# For b to be done, we must have rescheduled its dependencies to run them twice
self.assertTrue(b.complete())
self.assertTrue(all(a.complete() for a in b.deps()))
def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w.add(b))
self.assertTrue(w2.add(eb))
logging.debug("RUNNING BROKEN WORKER")
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
self.assertTrue(w.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w2.add(eb))
self.assertTrue(w.add(b))
self.assertTrue(w2.run())
self.assertFalse(b.complete())
self.assertTrue(w.run())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers3(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(a))
self.assertTrue(w2.add(b))
threading.Thread(target=w.run).start()
self.assertTrue(w2.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_die_for_non_unique_pending(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(b))
self.assertTrue(w2.add(b))
self.assertEqual(w._get_work()[0], 'A()')
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
w2.stop()
def test_complete_exception(self):
"Tests that a task is still scheduled if its sister task crashes in the complete() method"
class A(DummyTask):
def complete(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_requires_exception(self):
class A(DummyTask):
def requires(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_no_task_limit(self):
w = Worker()
t = ForkBombTask(4, 2)
w.add(t)
w.run()
self.assertTrue(t.complete())
class WorkerEmailTest(EmailTest):
def setUp(self):
super(WorkerEmailTest, self).setUp()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.worker = Worker(scheduler=sch, worker_id="foo")
def tearDown(self):
self.worker.stop()
@with_config(EMAIL_CONFIG)
def test_connection_error(self):
sch = RemoteScheduler(host="this_host_doesnt_exist", port=1337)
worker = Worker(scheduler=sch)
self.waits = 0
def dummy_wait():
self.waits += 1
sch._wait = dummy_wait
class A(DummyTask):
pass
a = A()
self.assertEquals(self.last_email, None)
worker.add(a)
self.assertEquals(self.waits, 2) # should attempt to add it 3 times
self.assertNotEquals(self.last_email, None)
self.assertEquals(self.last_email[0], "Luigi: Framework error while scheduling %s" % (a,))
worker.stop()
@with_config(EMAIL_CONFIG)
def test_complete_error(self):
class A(DummyTask):
def complete(self):
raise Exception("b0rk")
a = A()
self.assertEquals(self.last_email, None)
self.worker.add(a)
self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
self.worker.run()
self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
self.assertFalse(a.has_run)
@with_config(EMAIL_CONFIG)
def test_complete_return_value(self):
class A(DummyTask):
def complete(self):
pass # no return value should be an error
a = A()
self.assertEquals(self.last_email, None)
self.worker.add(a)
self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
self.worker.run()
self.assertEquals(("Luigi: %s failed scheduling" % (a,)), self.last_email[0])
self.assertFalse(a.has_run)
@with_config(EMAIL_CONFIG)
def test_run_error(self):
class A(luigi.Task):
def complete(self):
return False
def run(self):
raise Exception("b0rk")
a = A()
self.worker.add(a)
self.assertEquals(self.last_email, None)
self.worker.run()
self.assertEquals(("Luigi: %s FAILED" % (a,)), self.last_email[0])
def test_no_error(self):
class A(DummyTask):
pass
a = A()
self.assertEquals(self.last_email, None)
self.worker.add(a)
self.assertEquals(self.last_email, None)
self.worker.run()
self.assertEquals(self.last_email, None)
self.assertTrue(a.complete())
class ExceptionFormatTest(unittest.TestCase):
def setUp(self):
self.sch = CentralPlannerScheduler()
self.w = Worker(scheduler=self.sch)
def tear_down(self):
self.w.stop()
def test_fail_run(self):
task = FailRunTask(foo='foo', bar='bar')
self._run_task(task)
def test_fail_run_html(self):
task = FailRunTask(foo='foo', bar='bar')
self._run_task_html(task)
def test_fail_schedule(self):
task = FailSchedulingTask(foo='foo', bar='bar')
self._run_task(task)
def test_fail_schedule_html(self):
task = FailSchedulingTask(foo='foo', bar='bar')
self._run_task_html(task)
@with_config({'core': {'error-email': '*****@*****.**',
'email-prefix': '[TEST] '}})
@mock.patch('luigi.notifications.send_error_email')
def _run_task(self, task, mock_send):
self.w.add(task)
self.w.run()
self.assertEqual(mock_send.call_count, 1)
args, kwargs = mock_send.call_args
self._check_subject(args[0], task)
self._check_body(args[1], task, html=False)
@with_config({'core': {'error-email': '*****@*****.**',
'email-prefix': '[TEST] ',
'email-type': 'html'}})
@mock.patch('luigi.notifications.send_error_email')
def _run_task_html(self, task, mock_send):
self.w.add(task)
self.w.run()
self.assertEqual(mock_send.call_count, 1)
args, kwargs = mock_send.call_args
self._check_subject(args[0], task)
self._check_body(args[1], task, html=True)
def _check_subject(self, subject, task):
self.assertIn(task.task_id, subject)
def _check_body(self, body, task, html=False):
if html:
self.assertIn('<th>name</th><td>{}</td>'.format(task.task_family), body)
self.assertIn('<div class="highlight"', body)
self.assertIn('Oops!', body)
for param, value in task.param_kwargs.items():
self.assertIn('<th>{}</th><td>{}</td>'.format(param, value), body)
else:
self.assertIn('Name: {}\n'.format(task.task_family), body)
self.assertIn('Parameters:\n', body)
self.assertIn('TestException: Oops!', body)
for param, value in task.param_kwargs.items():
self.assertIn('{}: {}\n'.format(param, value), body)
@with_config({"core": {"error-email": "[email protected]"}})
def testEmailRecipients(self):
six.assertCountEqual(self, notifications._email_recipients(), ["[email protected]"])
six.assertCountEqual(self, notifications._email_recipients("[email protected]"), ["[email protected]", "[email protected]"])
six.assertCountEqual(self, notifications._email_recipients(["[email protected]", "[email protected]"]),
["[email protected]", "[email protected]", "[email protected]"])
@with_config({"core": {}}, replace_sections=True)
def testEmailRecipientsNoConfig(self):
six.assertCountEqual(self, notifications._email_recipients(), [])
six.assertCountEqual(self, notifications._email_recipients("[email protected]"), ["[email protected]"])
six.assertCountEqual(self, notifications._email_recipients(["[email protected]", "[email protected]"]),
["[email protected]", "[email protected]"])
def test_task_limit_not_exceeded(self):
w = Worker()
t = ForkBombTask(3, 2)
w.add(t)
w.run()
self.assertTrue(t.complete())
class WorkerTest(unittest.TestCase):
def setUp(self):
# InstanceCache.disable()
self.sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X')
self.w2 = Worker(scheduler=self.sch, worker_id='Y')
self.time = time.time
def tearDown(self):
if time.time != self.time:
time.time = self.time
self.w.stop()
self.w2.stop()
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
class A(Task):
def run(self):
self.has_run = True
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertTrue(a.has_run)
self.assertTrue(b.has_run)
def test_stop_getting_new_work(self):
d = DummyTask()
self.w.add(d)
self.assertFalse(d.complete())
try:
self.w.handle_interrupt(signal.SIGUSR1, None)
except AttributeError:
raise unittest.SkipTest('signal.SIGUSR1 not found on this system')
self.w.run()
self.assertFalse(d.complete())
def test_external_dep(self):
class A(ExternalTask):
def complete(self):
return False
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertFalse(a.has_run)
self.assertFalse(b.has_run)
def test_tracking_url(self):
tracking_url = 'http://test_url.com/'
class A(Task):
has_run = False
def complete(self):
return self.has_run
def run(self, tracking_url_callback=None):
if tracking_url_callback is not None:
tracking_url_callback(tracking_url)
self.has_run = True
a = A()
self.assertTrue(self.w.add(a))
self.assertTrue(self.w.run())
tasks = self.sch.task_list('DONE', '')
self.assertEqual(1, len(tasks))
self.assertEqual(tracking_url, tasks['A()']['tracking_url'])
def test_type_error_in_tracking_run(self):
class A(Task):
num_runs = 0
def complete(self):
return False
def run(self, tracking_url_callback=None):
self.num_runs += 1
raise TypeError('bad type')
a = A()
self.assertTrue(self.w.add(a))
self.assertFalse(self.w.run())
# Should only run and fail once, not retry because of the type error
self.assertEqual(1, a.num_runs)
def test_fail(self):
class CustomException(BaseException):
def __init__(self, msg):
self.msg = msg
class A(Task):
def run(self):
self.has_run = True
raise CustomException('bad things')
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertFalse(self.w.run())
self.assertTrue(a.has_run)
self.assertFalse(b.has_run)
def test_unknown_dep(self):
# see central_planner_test.CentralPlannerTest.test_remove_dep
class A(ExternalTask):
def complete(self):
return False
class C(Task):
def complete(self):
return True
def get_b(dep):
class B(Task):
def requires(self):
return dep
def run(self):
self.has_run = True
def complete(self):
return False
b = B()
b.has_run = False
return b
b_a = get_b(A())
b_c = get_b(C())
self.assertTrue(self.w.add(b_a))
# So now another worker goes in and schedules C -> B
# This should remove the dep A -> B but will screw up the first worker
self.assertTrue(self.w2.add(b_c))
self.assertFalse(self.w.run()) # should not run anything - the worker should detect that A is broken
self.assertFalse(b_a.has_run)
# not sure what should happen??
# self.w2.run() # should run B since C is fulfilled
# self.assertTrue(b_c.has_run)
def test_unfulfilled_dep(self):
class A(Task):
def complete(self):
return self.done
def run(self):
self.done = True
def get_b(a):
class B(A):
def requires(self):
return a
b = B()
b.done = False
a.done = True
return b
a = A()
b = get_b(a)
self.assertTrue(self.w.add(b))
a.done = False
self.w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
def test_gets_missed_work(self):
class A(Task):
done = False
def complete(self):
return self.done
def run(self):
self.done = True
a = A()
self.assertTrue(self.w.add(a))
# simulate a missed get_work response
self.assertEqual('A()', self.sch.get_work(worker='X')['task_id'])
self.assertTrue(self.w.run())
self.assertTrue(a.complete())
def test_avoid_infinite_reschedule(self):
class A(Task):
def complete(self):
return False
class B(Task):
def complete(self):
return False
def requires(self):
return A()
self.assertTrue(self.w.add(B()))
self.assertFalse(self.w.run())
def test_fails_registering_signal(self):
with mock.patch('luigi.worker.signal', spec=['signal']):
# mock will raise an attribute error getting signal.SIGUSR1
Worker()
def test_allow_reschedule_with_many_missing_deps(self):
class A(Task):
""" Task that must run twice to succeed """
i = luigi.IntParameter()
runs = 0
def complete(self):
return self.runs >= 2
def run(self):
self.runs += 1
class B(Task):
done = False
def requires(self):
return map(A, range(20))
def complete(self):
return self.done
def run(self):
self.done = True
b = B()
w = Worker(scheduler=self.sch, worker_id='X', max_reschedules=1)
self.assertTrue(w.add(b))
self.assertFalse(w.run())
# For b to be done, we must have rescheduled its dependencies to run them twice
self.assertTrue(b.complete())
self.assertTrue(all(a.complete() for a in b.deps()))
def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w.add(b))
self.assertTrue(w2.add(eb))
logging.debug("RUNNING BROKEN WORKER")
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
self.assertTrue(w.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w2.add(eb))
self.assertTrue(w.add(b))
self.assertTrue(w2.run())
self.assertFalse(b.complete())
self.assertTrue(w.run())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers3(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(a))
self.assertTrue(w2.add(b))
threading.Thread(target=w.run).start()
self.assertTrue(w2.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_die_for_non_unique_pending(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(b))
self.assertTrue(w2.add(b))
self.assertEqual(w._get_work()[0], 'A()')
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
w2.stop()
def test_complete_exception(self):
"Tests that a task is still scheduled if its sister task crashes in the complete() method"
class A(DummyTask):
def complete(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_requires_exception(self):
class A(DummyTask):
def requires(self):
raise Exception("doh")
a = A()
class D(DummyTask):
pass
d = D()
class C(DummyTask):
def requires(self):
return d
c = C()
class B(DummyTask):
def requires(self):
return c, a
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertTrue(d.has_run)
self.assertFalse(a.has_run)
w.stop()
class WorkerEmailTest(unittest.TestCase):
def setUp(self):
super(WorkerEmailTest, self).setUp()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.worker = Worker(scheduler=sch, worker_id="foo")
def tearDown(self):
self.worker.stop()
@email_patch
def test_connection_error(self, emails):
sch = RemoteScheduler('http://tld.invalid:1337', connect_timeout=1)
worker = Worker(scheduler=sch)
self.waits = 0
def dummy_wait():
self.waits += 1
sch._wait = dummy_wait
class A(DummyTask):
pass
a = A()
self.assertEqual(emails, [])
worker.add(a)
self.assertEqual(self.waits, 2) # should attempt to add it 3 times
self.assertNotEquals(emails, [])
self.assertTrue(emails[0].find("Luigi: Framework error while scheduling %s" % (a,)) != -1)
worker.stop()
@email_patch
def test_complete_error(self, emails):
class A(DummyTask):
def complete(self):
raise Exception("b0rk")
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.assertFalse(a.has_run)
@email_patch
def test_complete_return_value(self, emails):
class A(DummyTask):
def complete(self):
pass # no return value should be an error
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.assertFalse(a.has_run)
@email_patch
def test_run_error(self, emails):
class A(luigi.Task):
def complete(self):
return False
def run(self):
raise Exception("b0rk")
a = A()
self.worker.add(a)
self.assertEqual(emails, [])
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s FAILED" % (a,)) != -1)
@email_patch
def test_no_error(self, emails):
class A(DummyTask):
pass
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertEqual(emails, [])
self.worker.run()
self.assertEqual(emails, [])
self.assertTrue(a.complete())
class WorkerEmailTest(unittest.TestCase):
def setUp(self):
super(WorkerEmailTest, self).setUp()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.worker = Worker(scheduler=sch, worker_id="foo").__enter__()
def tearDown(self):
self.worker.__exit__(None, None, None)
@email_patch
def test_connection_error(self, emails):
sch = RemoteScheduler('http://tld.invalid:1337', connect_timeout=1)
self.waits = 0
def dummy_wait():
self.waits += 1
sch._wait = dummy_wait
class A(DummyTask):
pass
a = A()
self.assertEqual(emails, [])
with Worker(scheduler=sch) as worker:
worker.add(a)
self.assertEqual(self.waits, 2) # should attempt to add it 3 times
self.assertNotEqual(emails, [])
self.assertTrue(emails[0].find("Luigi: Framework error while scheduling %s" % (a,)) != -1)
@email_patch
def test_complete_error(self, emails):
class A(DummyTask):
def complete(self):
raise Exception("b0rk")
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.assertFalse(a.has_run)
@email_patch
def test_requires_error(self, emails):
class A(DummyTask):
def requires(self):
raise Exception("b0rk")
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.worker.run()
self.assertFalse(a.has_run)
@email_patch
def test_complete_return_value(self, emails):
class A(DummyTask):
def complete(self):
pass # no return value should be an error
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" % (a,)) != -1)
self.assertFalse(a.has_run)
@email_patch
def test_run_error(self, emails):
class A(luigi.Task):
def complete(self):
return False
def run(self):
raise Exception("b0rk")
a = A()
self.worker.add(a)
self.assertEqual(emails, [])
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s FAILED" % (a,)) != -1)
@email_patch
def test_no_error(self, emails):
class A(DummyTask):
pass
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertEqual(emails, [])
self.worker.run()
self.assertEqual(emails, [])
self.assertTrue(a.complete())
@custom_email_patch({"core": {"error-email": "not-a-real-email-address-for-test-only", 'email-type': 'none'}})
def test_disable_emails(self, emails):
class A(luigi.Task):
def complete(self):
raise Exception("b0rk")
self.worker.add(A())
self.assertEqual(emails, [])
class WorkerTest(unittest.TestCase):
def setUp(self):
# InstanceCache.disable()
self.sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X')
self.w2 = Worker(scheduler=self.sch, worker_id='Y')
self.time = time.time
def tearDown(self):
if time.time != self.time:
time.time = self.time
self.w.stop()
self.w2.stop()
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
class A(Task):
def run(self):
self.has_run = True
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertTrue(a.has_run)
self.assertTrue(b.has_run)
def test_stop_getting_new_work(self):
d = DummyTask()
self.w.add(d)
self.assertFalse(d.complete())
self.w.handle_interrupt(signal.SIGUSR1, None)
self.w.run()
self.assertFalse(d.complete())
def test_external_dep(self):
class A(ExternalTask):
def complete(self):
return False
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertFalse(a.has_run)
self.assertFalse(b.has_run)
def test_fail(self):
class A(Task):
def run(self):
self.has_run = True
raise Exception()
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertFalse(self.w.run())
self.assertTrue(a.has_run)
self.assertFalse(b.has_run)
def test_unknown_dep(self):
# see central_planner_test.CentralPlannerTest.test_remove_dep
class A(ExternalTask):
def complete(self):
return False
class C(Task):
def complete(self):
return True
def get_b(dep):
class B(Task):
def requires(self):
return dep
def run(self):
self.has_run = True
def complete(self):
return False
b = B()
b.has_run = False
return b
b_a = get_b(A())
b_c = get_b(C())
self.assertTrue(self.w.add(b_a))
# So now another worker goes in and schedules C -> B
# This should remove the dep A -> B but will screw up the first worker
self.assertTrue(self.w2.add(b_c))
self.assertFalse(
self.w.run()
) # should not run anything - the worker should detect that A is broken
self.assertFalse(b_a.has_run)
# not sure what should happen??
# self.w2.run() # should run B since C is fulfilled
# self.assertTrue(b_c.has_run)
def test_unfulfilled_dep(self):
class A(Task):
def complete(self):
return self.done
def run(self):
self.done = True
def get_b(a):
class B(A):
def requires(self):
return a
b = B()
b.done = False
a.done = True
return b
a = A()
b = get_b(a)
self.assertTrue(self.w.add(b))
a.done = False
self.w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
def test_avoid_infinite_reschedule(self):
class A(Task):
def complete(self):
return False
class B(Task):
def complete(self):
return False
def requires(self):
return A()
self.assertTrue(self.w.add(B()))
self.assertFalse(self.w.run())
def test_allow_reschedule_with_many_missing_deps(self):
class A(Task):
""" Task that must run twice to succeed """
i = luigi.IntParameter()
runs = 0
def complete(self):
return self.runs >= 2
def run(self):
self.runs += 1
class B(Task):
done = False
def requires(self):
return map(A, range(20))
def complete(self):
return self.done
def run(self):
self.done = True
b = B()
w = Worker(scheduler=self.sch, worker_id='X', max_reschedules=1)
self.assertTrue(w.add(b))
self.assertFalse(w.run())
# For b to be done, we must have rescheduled its dependencies to run them twice
self.assertTrue(b.complete())
self.assertTrue(all(a.complete() for a in b.deps()))
def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w.add(b))
self.assertTrue(w2.add(eb))
logging.debug("RUNNING BROKEN WORKER")
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
self.assertTrue(w.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w2.add(eb))
self.assertTrue(w.add(b))
self.assertTrue(w2.run())
self.assertFalse(b.complete())
self.assertTrue(w.run())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers3(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch,
worker_id='X',
keep_alive=True,
count_uniques=True)
w2 = Worker(scheduler=sch,
worker_id='Y',
keep_alive=True,
count_uniques=True,
wait_interval=0.1)
self.assertTrue(w.add(a))
self.assertTrue(w2.add(b))
threading.Thread(target=w.run).start()
self.assertTrue(w2.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_die_for_non_unique_pending(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch,
worker_id='X',
keep_alive=True,
count_uniques=True)
w2 = Worker(scheduler=sch,
worker_id='Y',
keep_alive=True,
count_uniques=True,
wait_interval=0.1)
self.assertTrue(w.add(b))
self.assertTrue(w2.add(b))
self.assertEqual(w._get_work()[0], 'A()')
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
w2.stop()
def test_complete_exception(self):
"Tests that a task is still scheduled if its sister task crashes in the complete() method"
class A(DummyTask):
def complete(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_requires_exception(self):
class A(DummyTask):
def requires(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
class WorkerEmailTest(unittest.TestCase):
def setUp(self):
super(WorkerEmailTest, self).setUp()
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
self.worker = Worker(scheduler=sch, worker_id="foo")
def tearDown(self):
self.worker.stop()
@email_patch
def test_connection_error(self, emails):
sch = RemoteScheduler(host="this_host_doesnt_exist",
port=1337,
connect_timeout=1)
worker = Worker(scheduler=sch)
self.waits = 0
def dummy_wait():
self.waits += 1
sch._wait = dummy_wait
class A(DummyTask):
pass
a = A()
self.assertEqual(emails, [])
worker.add(a)
self.assertEqual(self.waits, 2) # should attempt to add it 3 times
self.assertNotEquals(emails, [])
self.assertTrue(
emails[0].find("Luigi: Framework error while scheduling %s" %
(a, )) != -1)
worker.stop()
@email_patch
def test_complete_error(self, emails):
class A(DummyTask):
def complete(self):
raise Exception("b0rk")
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" %
(a, )) != -1)
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" %
(a, )) != -1)
self.assertFalse(a.has_run)
@email_patch
def test_complete_return_value(self, emails):
class A(DummyTask):
def complete(self):
pass # no return value should be an error
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" %
(a, )) != -1)
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s failed scheduling" %
(a, )) != -1)
self.assertFalse(a.has_run)
@email_patch
def test_run_error(self, emails):
class A(luigi.Task):
def complete(self):
return False
def run(self):
raise Exception("b0rk")
a = A()
self.worker.add(a)
self.assertEqual(emails, [])
self.worker.run()
self.assertTrue(emails[0].find("Luigi: %s FAILED" % (a, )) != -1)
@email_patch
def test_no_error(self, emails):
class A(DummyTask):
pass
a = A()
self.assertEqual(emails, [])
self.worker.add(a)
self.assertEqual(emails, [])
self.worker.run()
self.assertEqual(emails, [])
self.assertTrue(a.complete())
class WorkerTest(unittest.TestCase):
def setUp(self):
# InstanceCache.disable()
self.sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X')
self.w2 = Worker(scheduler=self.sch, worker_id='Y')
self.time = time.time
def tearDown(self):
if time.time != self.time:
time.time = self.time
self.w.stop()
self.w2.stop()
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
class A(Task):
def run(self):
self.has_run = True
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertTrue(a.has_run)
self.assertTrue(b.has_run)
def test_external_dep(self):
class A(ExternalTask):
def complete(self):
return False
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertTrue(self.w.run())
self.assertFalse(a.has_run)
self.assertFalse(b.has_run)
def test_fail(self):
class A(Task):
def run(self):
self.has_run = True
raise Exception()
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.assertTrue(self.w.add(b))
self.assertFalse(self.w.run())
self.assertTrue(a.has_run)
self.assertFalse(b.has_run)
def test_unknown_dep(self):
# see central_planner_test.CentralPlannerTest.test_remove_dep
class A(ExternalTask):
def complete(self):
return False
class C(Task):
def complete(self):
return True
def get_b(dep):
class B(Task):
def requires(self):
return dep
def run(self):
self.has_run = True
def complete(self):
return False
b = B()
b.has_run = False
return b
b_a = get_b(A())
b_c = get_b(C())
self.assertTrue(self.w.add(b_a))
# So now another worker goes in and schedules C -> B
# This should remove the dep A -> B but will screw up the first worker
self.assertTrue(self.w2.add(b_c))
self.assertFalse(self.w.run()) # should not run anything - the worker should detect that A is broken
self.assertFalse(b_a.has_run)
# not sure what should happen??
# self.w2.run() # should run B since C is fulfilled
# self.assertTrue(b_c.has_run)
def test_unfulfilled_dep(self):
class A(Task):
def complete(self):
return self.done
def run(self):
self.done = True
def get_b(a):
class B(A):
def requires(self):
return a
b = B()
b.done = False
a.done = True
return b
a = A()
b = get_b(a)
self.assertTrue(self.w.add(b))
a.done = False
self.w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
def test_dynamic_dependencies(self):
class DynamicRequires(Task):
p = luigi.Parameter()
def output(self):
return luigi.LocalTarget(os.path.join(self.p, 'parent'))
def run(self):
dummy_targets = yield [DynamicDummyTask(os.path.join(self.p, str(i)))
for i in range(5)]
dummy_targets += yield [DynamicDummyTask(os.path.join(self.p, str(i)))
for i in range(5, 7)]
with self.output().open('w') as f:
for i, d in enumerate(dummy_targets):
for line in d.open('r'):
print >>f, '%d: %s' % (i, line.strip())
t = DynamicRequires(p=tempfile.mktemp())
luigi.build([t], local_scheduler=True)
self.assertTrue(t.complete())
# loop through output and verify
f = t.output().open('r')
for i in xrange(7):
self.assertEqual(f.readline().strip(), '%d: Done!' % i)
def test_avoid_infinite_reschedule(self):
class A(Task):
def complete(self):
return False
class B(Task):
def complete(self):
return False
def requires(self):
return A()
self.assertTrue(self.w.add(B()))
self.assertFalse(self.w.run())
def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w.add(b))
self.assertTrue(w2.add(eb))
logging.debug("RUNNING BROKEN WORKER")
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
self.assertTrue(w.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEqual(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
self.assertTrue(w2.add(eb))
self.assertTrue(w.add(b))
self.assertTrue(w2.run())
self.assertFalse(b.complete())
self.assertTrue(w.run())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_interleaved_workers3(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(a))
self.assertTrue(w2.add(b))
threading.Thread(target=w.run).start()
self.assertTrue(w2.run())
self.assertTrue(a.complete())
self.assertTrue(b.complete())
w.stop()
w2.stop()
def test_die_for_non_unique_pending(self):
class A(DummyTask):
def run(self):
logging.debug('running A')
time.sleep(0.1)
super(A, self).run()
a = A()
class B(DummyTask):
def requires(self):
return a
def run(self):
logging.debug('running B')
super(B, self).run()
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X', keep_alive=True, count_uniques=True)
w2 = Worker(scheduler=sch, worker_id='Y', keep_alive=True, count_uniques=True, wait_interval=0.1)
self.assertTrue(w.add(b))
self.assertTrue(w2.add(b))
self.assertEqual(w._get_work()[0], 'A()')
self.assertTrue(w2.run())
self.assertFalse(a.complete())
self.assertFalse(b.complete())
w2.stop()
def test_complete_exception(self):
"Tests that a task is still scheduled if its sister task crashes in the complete() method"
class A(DummyTask):
def complete(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
def test_requires_exception(self):
class A(DummyTask):
def requires(self):
raise Exception("doh")
a = A()
class C(DummyTask):
pass
c = C()
class B(DummyTask):
def requires(self):
return a, c
b = B()
sch = CentralPlannerScheduler(retry_delay=100, remove_delay=1000, worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id="foo")
self.assertFalse(w.add(b))
self.assertTrue(w.run())
self.assertFalse(b.has_run)
self.assertTrue(c.has_run)
self.assertFalse(a.has_run)
w.stop()
class WorkerTest(unittest.TestCase):
def setUp(self):
# InstanceCache.disable()
self.sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
self.w = Worker(scheduler=self.sch, worker_id='X')
self.w2 = Worker(scheduler=self.sch, worker_id='Y')
self.time = time.time
def tearDown(self):
if time.time != self.time:
time.time = self.time
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
class A(Task):
def run(self):
self.has_run = True
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.w.add(b)
self.w.run()
self.assertTrue(a.has_run)
self.assertTrue(b.has_run)
def test_external_dep(self):
class A(ExternalTask):
def complete(self):
return False
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.w.add(b)
self.w.run()
self.assertFalse(a.has_run)
self.assertFalse(b.has_run)
def test_fail(self):
class A(Task):
def run(self):
self.has_run = True
raise Exception()
def complete(self):
return self.has_run
a = A()
class B(Task):
def requires(self):
return a
def run(self):
self.has_run = True
def complete(self):
return self.has_run
b = B()
a.has_run = False
b.has_run = False
self.w.add(b)
self.w.run()
self.assertTrue(a.has_run)
self.assertFalse(b.has_run)
def test_unknown_dep(self):
# see central_planner_test.CentralPlannerTest.test_remove_dep
class A(ExternalTask):
def complete(self):
return False
class C(Task):
def complete(self):
return True
def get_b(dep):
class B(Task):
def requires(self):
return dep
def run(self):
self.has_run = True
def complete(self):
return False
b = B()
b.has_run = False
return b
b_a = get_b(A())
b_c = get_b(C())
self.w.add(b_a)
# So now another worker goes in and schedules C -> B
# This should remove the dep A -> B but will screw up the first worker
self.w2.add(b_c)
self.w.run(
) # should not run anything - the worker should detect that A is broken
self.assertFalse(b_a.has_run)
# not sure what should happen??
# self.w2.run() # should run B since C is fulfilled
# self.assertTrue(b_c.has_run)
def test_interleaved_workers(self):
class A(DummyTask):
pass
a = A()
class B(DummyTask):
def requires(self):
return a
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEquals(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
w.add(b)
w2.add(eb)
logging.debug("RUNNING BROKEN WORKER")
w2.run()
self.assertFalse(a.complete())
self.assertFalse(b.complete())
logging.debug("RUNNING FUNCTIONAL WORKER")
w.run()
self.assertTrue(a.complete())
self.assertTrue(b.complete())
def test_interleaved_workers2(self):
# two tasks without dependencies, one external, one not
class B(DummyTask):
pass
class ExternalB(ExternalTask):
task_family = "B"
def complete(self):
return False
b = B()
eb = ExternalB()
self.assertEquals(eb.task_id, "B()")
sch = CentralPlannerScheduler(retry_delay=100,
remove_delay=1000,
worker_disconnect_delay=10)
w = Worker(scheduler=sch, worker_id='X')
w2 = Worker(scheduler=sch, worker_id='Y')
w2.add(eb)
w.add(b)
w2.run()
self.assertFalse(b.complete())
w.run()
self.assertTrue(b.complete())
def test_no_task_limit(self):
w = Worker()
t = ForkBombTask(4, 2)
w.add(t)
w.run()
self.assertTrue(t.complete())
class MultiprocessWorkerTest(unittest.TestCase):
def setUp(self):
self.scheduler = RemoteScheduler()
self.scheduler.add_worker = Mock()
self.scheduler.add_task = Mock()
self.worker = Worker(scheduler=self.scheduler, worker_id='X', worker_processes=2).__enter__()
def tearDown(self):
self.worker.__exit__(None, None, None)
def gw_res(self, pending, task_id):
return dict(n_pending_tasks=pending,
task_id=task_id,
running_tasks=0, n_unique_pending=0)
def test_positive_path(self):
a = DummyTask("a")
b = DummyTask("b")
class MultipleRequirementTask(DummyTask):
def requires(self):
return [a, b]
c = MultipleRequirementTask("C")
self.assertTrue(self.worker.add(c))
self.scheduler.get_work = Mock(side_effect=[self.gw_res(3, str(a)),
self.gw_res(2, str(b)),
self.gw_res(1, str(c)),
self.gw_res(0, None),
self.gw_res(0, None)])
self.assertTrue(self.worker.run())
self.assertTrue(c.has_run)
def test_path_with_task_failures(self):
class FailingTask(DummyTask):
def run(self):
raise Exception("I am failing")
a = FailingTask("a")
b = FailingTask("b")
class MultipleRequirementTask(DummyTask):
def requires(self):
return [a, b]
c = MultipleRequirementTask("C")
self.assertTrue(self.worker.add(c))
self.scheduler.get_work = Mock(side_effect=[self.gw_res(3, str(a)),
self.gw_res(2, str(b)),
self.gw_res(1, str(c)),
self.gw_res(0, None),
self.gw_res(0, None)])
self.assertFalse(self.worker.run())
