def _check_expired_tasks(self):
time_now = int(now())
if time_now - self._ttl_check_last_run < 1000: # 1000 = 1sec
return
self._ttl_check_last_run = time_now
TTL = SETTINGS.WORKER_TASK_TIMEOUT * 1000
for scheduled_task_name, scheduled_task_history in self.scheduler_tasks_history.items():
scheduled_task = self.scheduler_tasks.get(scheduled_task_name)
if (scheduled_task_history.get('next_run')
and scheduled_task_history.get('scheduled_task_id')
and (time_now - scheduled_task_history.get('next_run')) > (scheduled_task.get('ttl') or SETTINGS.WORKER_TASK_TIMEOUT)*1000):
task_id = scheduled_task_history.get('scheduled_task_id')
log.info('Fix broken task id={}, name={}'.format(task_id, scheduled_task_name))
# Get task object from redis key
key = SETTINGS.TASK_STORAGE_KEY.format(scheduled_task_history.get('scheduled_task_id')).encode('utf-8')
task_obj = yield from self.connection.get(key)
# Deserialize task object
try:
if not task_obj:
raise TypeError()
task = Task.deserialize(task_obj)
if task.status != Task.SUCCESSFUL:
# Update task object status
task = task._replace(status=Task.FAILED)
# Set new status to redis
yield from self.connection.set(key, task.serialize(), expire=SETTINGS.TASK_STORAGE_EXPIRE)
except TypeError as ex:
task = None
log.error("Wrong task id={}".format(scheduled_task_history.get('scheduled_task_id')), exc_info=True)
yield from self.connection.delete([key])
# Publish message about finish (FAILED)
if task:
yield from self.connection.publish(SETTINGS.TASK_CHANNEL.format(task_id).encode('utf-8'), task.status.encode('utf-8'))
else:
yield from self.connection.publish(SETTINGS.TASK_CHANNEL.format(task_id).encode('utf-8'), Task.FAILED.encode('utf-8'))
# Update scheduler information
# Store next_run in scheduled
try:
task_scheduler_obj = yield from self.connection.hget(SETTINGS.SCHEDULER_HISTORY_HASH, scheduled_task_name.encode('utf-8'))
task_scheduler = SchedulerTaskHistory.deserialize(task_scheduler_obj)
if task and task.status == Task.SUCCESSFUL:
scheduled_task_history['last_run'] = scheduled_task_history.get('next_run', 0)
scheduled_task_history['next_run'] = 0
task_scheduler = task_scheduler._replace(last_run=task_scheduler.next_run, next_run=0, scheduled_task_id=None)
else:
scheduled_task_history['next_run'] = 0
scheduled_task_history['scheduled_task_id'] = None
task_scheduler = task_scheduler._replace(next_run=0, scheduled_task_id=None)
yield from self.connection.hset(SETTINGS.SCHEDULER_HISTORY_HASH, task_scheduler.name.encode('utf-8'), task_scheduler.serialize())
except:
# We lost SCHEDULER_HISTORY_HASH in db
if task and task.status == Task.SUCCESSFUL:
scheduled_task_history['last_run'] = scheduled_task_history.get('next_run', 0)
scheduled_task_history['next_run'] = 0
else:
scheduled_task_history['next_run'] = 0
scheduled_task_history['scheduled_task_id'] = None
def _deserialize_task(self, raw_task):
try:
task_obj = yield from self.connection.get(SETTINGS.TASK_STORAGE_KEY.format(raw_task.decode('utf-8')).encode('utf-8'))
if not task_obj:
raise TypeError()
task = Task.deserialize(task_obj)
log.info("Got new task id={}, type={}, status={}".format(task.id, task.type, task.status))
if not task.status == Task.SCHEDULED:
log.error("Wrong status={} for task id={}, type={}; Should be SCHEDULED".format(task.status, task.id, task.type))
return
return task
except TypeError as ex:
log.error("Wrong task_id {}".format(raw_task))
return
except (pickle.UnpicklingError, EOFError, TypeError, ImportError):
yield from self.connection.lrem(SETTINGS.INPROGRESS_QUEUE, value=raw_task)
log.error("Wrong message in queue", exc_info=True)
return
def _deserialize_task(self, raw_task):
try:
task_obj = yield from self.connection.get(
SETTINGS.TASK_STORAGE_KEY.format(
raw_task.decode('utf-8')).encode('utf-8'))
if not task_obj:
raise TypeError()
task = Task.deserialize(task_obj)
log.info("Got new task id={}, type={}, status={}".format(
task.id, task.type, task.status))
if not task.status == Task.SCHEDULED:
log.error(
"Wrong status={} for task id={}, type={}; Should be SCHEDULED"
.format(task.status, task.id, task.type))
return
return task
except TypeError as ex:
log.error("Wrong task_id {}".format(raw_task))
return
except (pickle.UnpicklingError, EOFError, TypeError, ImportError):
yield from self.connection.lrem(SETTINGS.INPROGRESS_QUEUE,
value=raw_task)
log.error("Wrong message in queue", exc_info=True)
return
def _check_expired_tasks(self):
time_now = int(now())
if time_now - self._ttl_check_last_run < 1000: # 1000 = 1sec
return
self._ttl_check_last_run = time_now
TTL = SETTINGS.WORKER_TASK_TIMEOUT * 1000
for scheduled_task_name, scheduled_task_history in self.scheduler_tasks_history.items(
):
scheduled_task = self.scheduler_tasks.get(scheduled_task_name)
if (scheduled_task_history.get('next_run')
and scheduled_task_history.get('scheduled_task_id')
and (time_now - scheduled_task_history.get('next_run')) >
(scheduled_task.get('ttl') or SETTINGS.WORKER_TASK_TIMEOUT) *
1000):
task_id = scheduled_task_history.get('scheduled_task_id')
log.info('Fix broken task id={}, name={}'.format(
task_id, scheduled_task_name))
# Get task object from redis key
key = SETTINGS.TASK_STORAGE_KEY.format(
scheduled_task_history.get('scheduled_task_id')).encode(
'utf-8')
task_obj = yield from self.connection.get(key)
# Deserialize task object
try:
if not task_obj:
raise TypeError()
task = Task.deserialize(task_obj)
if task.status != Task.SUCCESSFUL:
# Update task object status
task = task._replace(status=Task.FAILED)
# Set new status to redis
yield from self.connection.set(
key,
task.serialize(),
expire=SETTINGS.TASK_STORAGE_EXPIRE)
except TypeError as ex:
task = None
log.error("Wrong task id={}".format(
scheduled_task_history.get('scheduled_task_id')),
exc_info=True)
yield from self.connection.delete([key])
# Publish message about finish (FAILED)
if task:
yield from self.connection.publish(
SETTINGS.TASK_CHANNEL.format(task_id).encode('utf-8'),
task.status.encode('utf-8'))
else:
yield from self.connection.publish(
SETTINGS.TASK_CHANNEL.format(task_id).encode('utf-8'),
Task.FAILED.encode('utf-8'))
# Update scheduler information
# Store next_run in scheduled
try:
task_scheduler_obj = yield from self.connection.hget(
SETTINGS.SCHEDULER_HISTORY_HASH,
scheduled_task_name.encode('utf-8'))
task_scheduler = SchedulerTaskHistory.deserialize(
task_scheduler_obj)
if task and task.status == Task.SUCCESSFUL:
scheduled_task_history[
'last_run'] = scheduled_task_history.get(
'next_run', 0)
scheduled_task_history['next_run'] = 0
task_scheduler = task_scheduler._replace(
last_run=task_scheduler.next_run,
next_run=0,
scheduled_task_id=None)
else:
scheduled_task_history['next_run'] = 0
scheduled_task_history['scheduled_task_id'] = None
task_scheduler = task_scheduler._replace(
next_run=0, scheduled_task_id=None)
yield from self.connection.hset(
SETTINGS.SCHEDULER_HISTORY_HASH,
task_scheduler.name.encode('utf-8'),
task_scheduler.serialize())
except:
# We lost SCHEDULER_HISTORY_HASH in db
if task and task.status == Task.SUCCESSFUL:
scheduled_task_history[
'last_run'] = scheduled_task_history.get(
'next_run', 0)
scheduled_task_history['next_run'] = 0
else:
scheduled_task_history['next_run'] = 0
scheduled_task_history['scheduled_task_id'] = None