def test_query_task(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
panel = self.create_panel(consumer=consumer)
panel.app = self.app
req1 = Request(
self.TaskMessage(self.mytask.name, args=(2, 2)),
app=self.app,
)
worker_state.task_reserved(req1)
try:
assert not panel.handle('query_task', {'ids': {'1daa'}})
ret = panel.handle('query_task', {'ids': {req1.id}})
assert req1.id in ret
assert ret[req1.id][0] == 'reserved'
worker_state.active_requests.add(req1)
try:
ret = panel.handle('query_task', {'ids': {req1.id}})
assert ret[req1.id][0] == 'active'
finally:
worker_state.active_requests.clear()
ret = panel.handle('query_task', {'ids': {req1.id}})
assert ret[req1.id][0] == 'reserved'
finally:
worker_state.reserved_requests.clear()
def test_query_task(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
panel = self.create_panel(consumer=consumer)
panel.app = self.app
req1 = Request(
self.TaskMessage(self.mytask.name, args=(2, 2)),
app=self.app,
)
worker_state.task_reserved(req1)
try:
assert not panel.handle('query_task', {'ids': {'1daa'}})
ret = panel.handle('query_task', {'ids': {req1.id}})
assert req1.id in ret
assert ret[req1.id][0] == 'reserved'
worker_state.active_requests.add(req1)
try:
ret = panel.handle('query_task', {'ids': {req1.id}})
assert ret[req1.id][0] == 'active'
finally:
worker_state.active_requests.clear()
ret = panel.handle('query_task', {'ids': {req1.id}})
assert ret[req1.id][0] == 'reserved'
finally:
worker_state.reserved_requests.clear()
def test_query_task(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
panel = self.create_panel(consumer=consumer)
panel.app = self.app
req1 = Request(
TaskMessage(self.mytask.name, args=(2, 2)),
app=self.app,
)
worker_state.task_reserved(req1)
try:
self.assertFalse(panel.handle('query_task', {'ids': {'1daa'}}))
ret = panel.handle('query_task', {'ids': {req1.id}})
self.assertIn(req1.id, ret)
self.assertEqual(ret[req1.id][0], 'reserved')
worker_state.active_requests.add(req1)
try:
ret = panel.handle('query_task', {'ids': {req1.id}})
self.assertEqual(ret[req1.id][0], 'active')
finally:
worker_state.active_requests.clear()
ret = panel.handle('query_task', {'ids': {req1.id}})
self.assertEqual(ret[req1.id][0], 'reserved')
finally:
worker_state.reserved_requests.clear()
def test_query_task(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
panel = self.create_panel(consumer=consumer)
panel.app = self.app
req1 = Request(
TaskMessage(self.mytask.name, args=(2, 2)),
app=self.app,
)
worker_state.task_reserved(req1)
try:
self.assertFalse(panel.handle('query_task', {'ids': {'1daa'}}))
ret = panel.handle('query_task', {'ids': {req1.id}})
self.assertIn(req1.id, ret)
self.assertEqual(ret[req1.id][0], 'reserved')
worker_state.active_requests.add(req1)
try:
ret = panel.handle('query_task', {'ids': {req1.id}})
self.assertEqual(ret[req1.id][0], 'active')
finally:
worker_state.active_requests.clear()
ret = panel.handle('query_task', {'ids': {req1.id}})
self.assertEqual(ret[req1.id][0], 'reserved')
finally:
worker_state.reserved_requests.clear()
def _limit_task(self, request, bucket, tokens):
if not bucket.can_consume(tokens):
hold = bucket.expected_time(tokens)
pri = self._limit_order = (self._limit_order + 1) % 10
self.timer.call_after(
hold, self._limit_move_to_pool, (request,),
priority=pri,
)
else:
task_reserved(request)
self.on_task_request(request)
def _limit_task(self, request, bucket, tokens):
if not bucket.can_consume(tokens):
hold = bucket.expected_time(tokens)
pri = self._limit_order = (self._limit_order + 1) % 10
self.timer.call_after(
hold, self._limit_move_to_pool, (request,),
priority=pri,
)
else:
task_reserved(request)
self.on_task_request(request)
def test_dump_reserved(self):
consumer = Consumer(self.app)
req = Request(
self.TaskMessage(self.mytask.name, args=(2, 2)), app=self.app,
) # ^ need to keep reference for reserved_tasks WeakSet.
worker_state.task_reserved(req)
try:
panel = self.create_panel(consumer=consumer)
response = panel.handle('dump_reserved', {'safe': True})
assert response[0]['name'] == self.mytask.name
assert response[0]['hostname'] == socket.gethostname()
worker_state.reserved_requests.clear()
assert not panel.handle('dump_reserved')
finally:
worker_state.reserved_requests.clear()
def test_dump_reserved(self):
consumer = Consumer(self.app)
req = Request(
self.TaskMessage(self.mytask.name, args=(2, 2)), app=self.app,
) # ^ need to keep reference for reserved_tasks WeakSet.
worker_state.task_reserved(req)
try:
panel = self.create_panel(consumer=consumer)
response = panel.handle('dump_reserved', {'safe': True})
assert response[0]['name'] == self.mytask.name
assert response[0]['hostname'] == socket.gethostname()
worker_state.reserved_requests.clear()
assert not panel.handle('dump_reserved')
finally:
worker_state.reserved_requests.clear()
def task_message_handler(message, body, ack, reject, callbacks,
to_timestamp=to_timestamp):
req = Req(body, on_ack=ack, on_reject=reject,
app=app, hostname=hostname,
eventer=eventer, task=task,
connection_errors=connection_errors,
message=message)
# do check revoke purge befor task handler, skip the expired revoke
revoked_tasks.purge(limit=None, offset=REVOKES_MAX)
# paused.purge(limit=None, offset=REVOKES_MAX)
if req.revoked():
return
if _does_info:
logger.info('hera Received task: %s', req)
if events:
send_event(
'task-received',
uuid=req.id, name=req.name,
args=safe_repr(req.args), kwargs=safe_repr(req.kwargs),
retries=req.request_dict.get('retries', 0),
eta=req.eta and req.eta.isoformat(),
expires=req.expires and req.expires.isoformat(),
)
if req.eta:
try:
if req.utc:
eta = to_timestamp(to_system_tz(req.eta))
else:
eta = to_timestamp(req.eta, timezone.local)
except OverflowError as exc:
error("Couldn't convert eta %s to timestamp: %r. Task: %r",
req.eta, exc, req.info(safe=True), exc_info=True)
req.acknowledge()
else:
consumer.qos.increment_eventually()
call_at(eta, apply_eta_task, (req, ), priority=6)
else:
if rate_limits_enabled:
bucket = get_bucket(task.name)
if bucket:
return limit_task(req, bucket, 1)
task_reserved(req)
if callbacks:
[callback() for callback in callbacks]
handle(req)
def test_revoke_terminate(self):
request = Mock()
request.id = tid = uuid()
state = self.create_state()
state.consumer = Mock()
worker_state.task_reserved(request)
try:
r = control.revoke(state, tid, terminate=True)
assert tid in revoked
assert request.terminate.call_count
assert 'terminate:' in r['ok']
# unknown task id only revokes
r = control.revoke(state, uuid(), terminate=True)
assert 'tasks unknown' in r['ok']
finally:
worker_state.task_ready(request)
def test_revoke_terminate(self):
request = Mock()
request.id = tid = uuid()
state = self.create_state()
state.consumer = Mock()
worker_state.task_reserved(request)
try:
r = control.revoke(state, tid, terminate=True)
assert tid in revoked
assert request.terminate.call_count
assert 'terminate:' in r['ok']
# unknown task id only revokes
r = control.revoke(state, uuid(), terminate=True)
assert 'tasks unknown' in r['ok']
finally:
worker_state.task_ready(request)
def test_revoke_terminate(self):
request = Mock()
request.id = tid = uuid()
state = self.create_state()
state.consumer = Mock()
worker_state.task_reserved(request)
try:
r = control.revoke(state, tid, terminate=True)
self.assertIn(tid, revoked)
self.assertTrue(request.terminate.call_count)
self.assertIn('terminate:', r['ok'])
# unknown task id only revokes
r = control.revoke(state, uuid(), terminate=True)
self.assertIn('tasks unknown', r['ok'])
finally:
worker_state.task_ready(request)
def test_revoke_terminate(self):
request = Mock()
request.id = tid = uuid()
state = self.create_state()
state.consumer = Mock()
worker_state.task_reserved(request)
try:
r = control.revoke(state, tid, terminate=True)
self.assertIn(tid, revoked)
self.assertTrue(request.terminate.call_count)
self.assertIn('terminate:', r['ok'])
# unknown task id only revokes
r = control.revoke(state, uuid(), terminate=True)
self.assertIn('tasks unknown', r['ok'])
finally:
worker_state.task_ready(request)
def test_dump_reserved(self):
consumer = Consumer(self.app)
req = Request(
TaskMessage(self.mytask.name, args=(2, 2)), app=self.app,
) # ^ need to keep reference for reserved_tasks WeakSet.
worker_state.task_reserved(req)
try:
panel = self.create_panel(consumer=consumer)
response = panel.handle('dump_reserved', {'safe': True})
self.assertDictContainsSubset(
{'name': self.mytask.name,
'hostname': socket.gethostname()},
response[0],
)
worker_state.reserved_requests.clear()
self.assertFalse(panel.handle('dump_reserved'))
finally:
worker_state.reserved_requests.clear()
def test_dump_reserved(self):
consumer = Consumer(self.app)
req = Request(
TaskMessage(self.mytask.name, args=(2, 2)), app=self.app,
) # ^ need to keep reference for reserved_tasks WeakSet.
worker_state.task_reserved(req)
try:
panel = self.create_panel(consumer=consumer)
response = panel.handle('dump_reserved', {'safe': True})
self.assertDictContainsSubset(
{'name': self.mytask.name,
'hostname': socket.gethostname()},
response[0],
)
worker_state.reserved_requests.clear()
self.assertFalse(panel.handle('dump_reserved'))
finally:
worker_state.reserved_requests.clear()
def test_no_negative_scale(self):
total_num_processes = []
worker = Mock(name='worker')
x = autoscale.Autoscaler(self.pool, 10, 3, worker=worker)
x.body() # the body func scales up or down
_keep = [Mock(name=f'req{i}') for i in range(35)]
for req in _keep:
state.task_reserved(req)
x.body()
total_num_processes.append(self.pool.num_processes)
for req in _keep:
state.task_ready(req)
x.body()
total_num_processes.append(self.pool.num_processes)
assert all(x.min_concurrency <= i <= x.max_concurrency
for i in total_num_processes)
def test_no_negative_scale(self):
total_num_processes = []
worker = Mock(name='worker')
x = autoscale.Autoscaler(self.pool, 10, 3, worker=worker)
x.body() # the body func scales up or down
_keep = [Mock(name='req{0}'.format(i)) for i in range(35)]
for req in _keep:
state.task_reserved(req)
x.body()
total_num_processes.append(self.pool.num_processes)
for req in _keep:
state.task_ready(req)
x.body()
total_num_processes.append(self.pool.num_processes)
assert all(x.min_concurrency <= i <= x.max_concurrency
for i in total_num_processes)
def test_query_task(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
panel = self.create_panel(consumer=consumer)
panel.app = self.app
req1 = Request(self.TaskMessage(self.mytask.name, args=(2, 2)), app=self.app)
worker_state.task_reserved(req1)
try:
assert not panel.handle("query_task", {"ids": {"1daa"}})
ret = panel.handle("query_task", {"ids": {req1.id}})
assert req1.id in ret
assert ret[req1.id][0] == "reserved"
worker_state.active_requests.add(req1)
try:
ret = panel.handle("query_task", {"ids": {req1.id}})
assert ret[req1.id][0] == "active"
finally:
worker_state.active_requests.clear()
ret = panel.handle("query_task", {"ids": {req1.id}})
assert ret[req1.id][0] == "reserved"
finally:
worker_state.reserved_requests.clear()
def test_with_autoscaler_file_descriptor_safety(self):
# Given: a test celery worker instance with auto scaling
worker = self.create_worker(
autoscale=[10, 5],
use_eventloop=True,
timer_cls='celery.utils.timer2.Timer',
threads=False,
)
# Given: This test requires a QoS defined on the worker consumer
worker.consumer.qos = qos = QoS(lambda prefetch_count: prefetch_count,
2)
qos.update()
# Given: We have started the worker pool
worker.pool.start()
# Then: the worker pool is the same as the autoscaler pool
auto_scaler = worker.autoscaler
assert worker.pool == auto_scaler.pool
# Given: Utilize kombu to get the global hub state
hub = get_event_loop()
# Given: Initial call the Async Pool to register events works fine
worker.pool.register_with_event_loop(hub)
# Create some mock queue message and read from them
_keep = [Mock(name=f'req{i}') for i in range(20)]
[state.task_reserved(m) for m in _keep]
auto_scaler.body()
# Simulate a file descriptor from the list is closed by the OS
# auto_scaler.force_scale_down(5)
# This actually works -- it releases the semaphore properly
# Same with calling .terminate() on the process directly
for fd, proc in worker.pool._pool._fileno_to_outq.items():
# however opening this fd as a file and closing it will do it
queue_worker_socket = open(str(fd), "w")
queue_worker_socket.close()
break # Only need to do this once
# When: Calling again to register with event loop ...
worker.pool.register_with_event_loop(hub)
# Then: test did not raise "OSError: [Errno 9] Bad file descriptor!"
# Finally: Clean up so the threads before/after fixture passes
worker.terminate()
worker.pool.terminate()
def test_body(self):
worker = Mock(name='worker')
x = autoscale.Autoscaler(self.pool, 10, 3, worker=worker)
x.body()
assert x.pool.num_processes == 3
_keep = [Mock(name=f'req{i}') for i in range(20)]
[state.task_reserved(m) for m in _keep]
x.body()
x.body()
assert x.pool.num_processes == 10
state.reserved_requests.clear()
x.body()
assert x.pool.num_processes == 10
x._last_scale_up = monotonic() - 10000
x.body()
assert x.pool.num_processes == 3
def test_body(self):
worker = Mock(name='worker')
x = autoscale.Autoscaler(self.pool, 10, 3, worker=worker)
x.body()
assert x.pool.num_processes == 3
_keep = [Mock(name='req{0}'.format(i)) for i in range(20)]
[state.task_reserved(m) for m in _keep]
x.body()
x.body()
assert x.pool.num_processes == 10
worker.consumer._update_prefetch_count.assert_called()
state.reserved_requests.clear()
x.body()
assert x.pool.num_processes == 10
x._last_scale_up = monotonic() - 10000
x.body()
assert x.pool.num_processes == 3
worker.consumer._update_prefetch_count.assert_called()
def test_body(self):
worker = Mock(name='worker')
x = autoscale.Autoscaler(self.pool, 10, 3, worker=worker)
x.body()
self.assertEqual(x.pool.num_processes, 3)
_keep = [Mock(name='req{0}'.format(i)) for i in range(20)]
[state.task_reserved(m) for m in _keep]
x.body()
x.body()
self.assertEqual(x.pool.num_processes, 10)
worker.consumer._update_prefetch_count.assert_called()
state.reserved_requests.clear()
x.body()
self.assertEqual(x.pool.num_processes, 10)
x._last_scale_up = monotonic() - 10000
x.body()
self.assertEqual(x.pool.num_processes, 3)
worker.consumer._update_prefetch_count.assert_called()
def task_message_handler(message,
body,
ack,
reject,
callbacks,
to_timestamp=to_timestamp):
if body is None and 'args' not in message.payload:
body, headers, decoded, utc = (
message.body,
message.headers,
False,
app.uses_utc_timezone(),
)
if not body_can_be_buffer:
body = bytes(body) if isinstance(body, buffer_t) else body
else:
if 'args' in message.payload:
body, headers, decoded, utc = hybrid_to_proto2(
message, message.payload)
else:
body, headers, decoded, utc = proto1_to_proto2(message, body)
req = Req(
message,
on_ack=ack,
on_reject=reject,
app=app,
hostname=hostname,
eventer=eventer,
task=task,
connection_errors=connection_errors,
body=body,
headers=headers,
decoded=decoded,
utc=utc,
)
if _does_info:
info('Received task: %s', req)
if (req.expires or req.id in revoked_tasks) and req.revoked():
return
if task_sends_events:
send_event(
'task-received',
uuid=req.id,
name=req.name,
args=req.argsrepr,
kwargs=req.kwargsrepr,
root_id=req.root_id,
parent_id=req.parent_id,
retries=req.request_dict.get('retries', 0),
eta=req.eta and req.eta.isoformat(),
expires=req.expires and req.expires.isoformat(),
)
bucket = None
eta = None
if req.eta:
try:
if req.utc:
eta = to_timestamp(to_system_tz(req.eta))
else:
eta = to_timestamp(req.eta, app.timezone)
except (OverflowError, ValueError) as exc:
error("Couldn't convert ETA %r to timestamp: %r. Task: %r",
req.eta,
exc,
req.info(safe=True),
exc_info=True)
req.reject(requeue=False)
if rate_limits_enabled:
bucket = get_bucket(task.name)
if eta and bucket:
consumer.qos.increment_eventually()
return call_at(eta, limit_post_eta, (req, bucket, 1), priority=6)
if eta:
consumer.qos.increment_eventually()
call_at(eta, apply_eta_task, (req, ), priority=6)
return task_message_handler
if bucket:
return limit_task(req, bucket, 1)
task_reserved(req)
if callbacks:
[callback(req) for callback in callbacks]
handle(req)
def apply_eta_task(self, task):
"""Method called by the timer to apply a task with an ETA/countdown."""
task_reserved(task)
self.on_task_request(task)
self.qos.decrement_eventually()
def _limit_move_to_pool(self, request):
task_reserved(request)
self.on_task_request(request)
def _limit_move_to_pool(self, request):
task_reserved(request)
self.on_task_request(request)
def task_message_handler(message,
body,
ack,
reject,
callbacks,
to_timestamp=to_timestamp):
req = Req(body,
on_ack=ack,
on_reject=reject,
app=app,
hostname=hostname,
eventer=eventer,
task=task,
connection_errors=connection_errors,
message=message)
# do check revoke purge befor task handler, skip the expired revoke
revoked_tasks.purge(limit=None, offset=REVOKES_MAX)
# paused.purge(limit=None, offset=REVOKES_MAX)
if req.revoked():
return
if _does_info:
logger.info('hera Received task: %s', req)
if events:
send_event(
'task-received',
uuid=req.id,
name=req.name,
args=safe_repr(req.args),
kwargs=safe_repr(req.kwargs),
retries=req.request_dict.get('retries', 0),
eta=req.eta and req.eta.isoformat(),
expires=req.expires and req.expires.isoformat(),
)
if req.eta:
try:
if req.utc:
eta = to_timestamp(to_system_tz(req.eta))
else:
eta = to_timestamp(req.eta, timezone.local)
except OverflowError as exc:
error("Couldn't convert eta %s to timestamp: %r. Task: %r",
req.eta,
exc,
req.info(safe=True),
exc_info=True)
req.acknowledge()
else:
consumer.qos.increment_eventually()
call_at(eta, apply_eta_task, (req, ), priority=6)
else:
if rate_limits_enabled:
bucket = get_bucket(task.name)
if bucket:
return limit_task(req, bucket, 1)
task_reserved(req)
if callbacks:
[callback() for callback in callbacks]
handle(req)
def apply_eta_task(self, task):
"""Method called by the timer to apply a task with an ETA/countdown."""
task_reserved(task)
self.on_task_request(task)
self.qos.decrement_eventually()
def task_message_handler(message,
body,
ack,
reject,
callbacks,
to_timestamp=to_timestamp):
# print('crawl_task_message_handler %s %s' % (task_name, repr(body)))
body, headers, decoded, utc = (
message.body,
message.headers,
False,
True,
)
if not body_can_be_buffer:
body = bytes(body) if isinstance(body, buffer_t) else body
req = BaseReq(
message,
on_ack=ack,
on_reject=reject,
app=app,
hostname=hostname,
eventer=eventer,
task=task,
connection_errors=connection_errors,
body=body,
headers=headers,
decoded=decoded,
utc=utc,
)
# if _does_info:
meta = req.task_info()
taskinfo = {'meta': meta}
_info(u'收到任务', extra=taskinfo)
if (req.expires
or req.id in controller_revoked_tasks) and req.revoked():
return
# req_args, req_kwargs, req_embed = req._payload
if task_sends_events:
send_event(
'task-received',
uuid=req.id,
name=req.name,
args=req.argsrepr,
kwargs=req.kwargsrepr,
root_id=req.root_id,
parent_id=req.parent_id,
retries=req.request_dict.get('retries', 0),
eta=req.eta and req.eta.isoformat(),
expires=req.expires and req.expires.isoformat(),
)
# 保存
# ti = get_task_info(req._args, req._kwargs)
fields = dict(
name=req.name,
# project=req._project, page=req._page, url=req._url,
kwargs=json.dumps(req._kwargs),
# args=req_args, kwargs=req_kwargs,
root_id=req.root_id,
parent_id=req.parent_id,
retries=req.request_dict.get('retries', 0),
eta=req.eta and req.eta.isoformat(),
expires=req.expires and req.expires.isoformat(),
meta=meta)
save_task_status('task-received', req.id, fields)
# 限速
if req._kwargs.get('__limit__'):
try:
key = 'rate:%s' % meta['project']
pending = get_expected_time(key)
# print '----Rate limit pending: %s %r' % (req.id, pending)
if pending > 0:
req.eta = maybe_make_aware(datetime.utcnow() +
timedelta(seconds=pending))
info('Rate Limit [%s.%s] %s', meta['project'],
meta['page'], pending)
except Exception:
error('Rate limit. Task: %r',
req.info(safe=True),
exc_info=True)
if req.eta:
try:
if req.utc:
eta = to_timestamp(to_system_tz(req.eta))
else:
eta = to_timestamp(req.eta, timezone.local)
except (OverflowError, ValueError):
error("Couldn't convert ETA %r to timestamp. Task: %r",
req.eta,
req.info(safe=True),
exc_info=True)
req.reject(requeue=False)
else:
consumer.qos.increment_eventually()
call_at(eta, apply_eta_task, (req, ), priority=6)
else:
if rate_limits_enabled:
bucket = get_bucket(task.name)
if bucket:
return limit_task(req, bucket, 1)
task_reserved(req)
if callbacks:
[callback(req) for callback in callbacks]
handle(req)
