def doAction(args):
if args.add:
url = args.url
key = args.key
if key is None:
print("require key")
return -1
timeout = args.timeout
repeat = args.repeat
if url is None:
print('url is required')
return -1
entry = Entry(f'urlCheck_{key}',
'tasks.urlSpeed',
repeat,
args=['GET', url, timeout, key],
app=tasks.app)
entry.save()
print(f"url added, key={entry.key}, store key for deletion")
elif args.delete:
key = args.key
if key is None:
print("require key")
return -1
entry = Entry.from_key(key, app=tasks.app)
entry.delete()
print("task deleted")
def stop_timelapse_task(key: str) -> bool:
try:
entry = RedBeatSchedulerEntry.from_key(key, app=app)
entry.delete()
return True
except Exception as e:
logger.error(traceback.format_exc())
raise TaskError(e)
def test_delete(self):
initial = self.create_entry()
initial.save()
e = RedBeatSchedulerEntry.from_key(initial.key, app=self.app)
e.delete()
exists = self.app.redbeat_redis.exists(initial.key)
self.assertFalse(exists)
score = self.app.redbeat_redis.zrank(self.app.conf.REDBEAT_SCHEDULE_KEY, initial.key)
self.assertIsNone(score)
def test_delete(self):
initial = self.create_entry()
initial.save()
e = RedBeatSchedulerEntry.from_key(initial.key, app=self.app)
e.delete()
exists = self.app.redbeat_redis.exists(initial.key)
self.assertFalse(exists)
score = self.app.redbeat_redis.zrank(self.app.redbeat_conf.schedule_key, initial.key)
self.assertIsNone(score)
def _read_cached_scheduled_tasks():
"""Read in any cached task keys from a previous run if they were left because of a crash
"""
results = []
try:
with open(".task_cache", "r") as f:
for key in f.readlines():
try:
e = Entry.from_key(key.strip(), app=app)
if e is not None:
results.append(e)
except Exception as e:
print("Task not found: ", e)
except FileNotFoundError as e:
return None
except Exception as e:
print("Error: ", e)
return results
def test_next(self):
initial = self.create_entry().save()
now = self.app.now()
n = initial.next(last_run_at=now)
# new entry has updated run info
self.assertNotEqual(initial, n)
self.assertEqual(n.last_run_at, now)
self.assertEqual(initial.total_run_count + 1, n.total_run_count)
# updated meta was stored into redis
loaded = RedBeatSchedulerEntry.from_key(initial.key, app=self.app)
self.assertEqual(loaded.last_run_at, now)
self.assertEqual(loaded.total_run_count, initial.total_run_count + 1)
# new entry updated the schedule
redis = self.app.redbeat_redis
self.assertEqual(redis.zscore(self.app.conf.REDBEAT_SCHEDULE_KEY, n.key), n.score)
def test_next(self):
initial = self.create_entry().save()
now = self.app.now()
n = initial.next(last_run_at=now)
# new entry has updated run info
self.assertNotEqual(initial, n)
self.assertEqual(n.last_run_at, now)
self.assertEqual(initial.total_run_count + 1, n.total_run_count)
# updated meta was stored into redis
loaded = RedBeatSchedulerEntry.from_key(initial.key, app=self.app)
self.assertEqual(loaded.last_run_at, now)
self.assertEqual(loaded.total_run_count, initial.total_run_count + 1)
# new entry updated the schedule
redis = self.app.redbeat_redis
self.assertEqual(redis.zscore(self.app.redbeat_conf.schedule_key, n.key), n.score)
def test_next(self):
initial = self.create_entry().save()
now = self.app.now()
# 3.x is naive but 4.x is aware
now = maybe_make_aware(now)
n = initial.next(last_run_at=now)
self.assertIsNotNone(now.tzinfo)
self.assertEqual(n.last_run_at, now)
self.assertEqual(initial.total_run_count + 1, n.total_run_count)
# updated meta was stored into redis
loaded = RedBeatSchedulerEntry.from_key(initial.key, app=self.app)
self.assertEqual(loaded.last_run_at, now)
self.assertEqual(loaded.total_run_count, initial.total_run_count + 1)
# new entry updated the schedule
redis = self.app.redbeat_redis
self.assertEqual(
redis.zscore(self.app.redbeat_conf.schedule_key, n.key), n.score)
def check_tasks(self, services: list, create: bool = True):
for service_ in services:
service = Service(service_)
try:
entry = Entry.from_key(redbeat_key_prefix +
BASE_KEY.format(service.name),
app=tasks.app)
# todo: check entry existence
except:
if create:
if service.type == 1:
entry = Entry(BASE_KEY.format(service.name),
f'tasks.{service.type_name}',
service.repeat_period,
args=[
service.metadata['url'],
service.metadata['method'],
service.metadata['timeout'],
service.metadata.get('body', None)
],
app=tasks.app)
entry.save()
print(entry.key)
return 0
def test_from_key_missing_meta(self):
initial = self.create_entry().save()
loaded = RedBeatSchedulerEntry.from_key(initial.key, self.app)
self.assertEqual(initial.task, loaded.task)
self.assertIsNone(loaded.last_run_at)
def test_from_key_nonexistent_key(self):
with self.assertRaises(KeyError):
RedBeatSchedulerEntry.from_key('doesntexist', self.app)
def __init__(self, key='redbeat:watchdog-task'):
self.key = key
# Return KeyError or RedisConnectionError if encounter problem with Redis
self.job = RedBeatSchedulerEntry.from_key(key=self.key, app=celery)
def _get_entry_from_job(job):
conf = RedBeatConfig(app)
return RedBeatSchedulerEntry.from_key('{}{}'.format(
conf.key_prefix, job.job_id),
app=app)
# Demonstrate how to update data in redis beat so worker can pickup updated data without restarting the beat
# Run those command first:
# celery beat -A update_task_redbeat -S redbeat.RedBeatScheduler -l INFO
# celery -A update_task_redbeat worker -l INFO --concurrency=2
# Then in python console, use these to update
from datetime import timedelta
import update_task_redbeat
from redbeat import RedBeatSchedulerEntry as Entry
from celery.schedules import schedule
app = update_task_redbeat.app
e = Entry.from_key('redbeat:task_259', app=app)
# Update schedule to 5 seconds
e.schedule = schedule(5)
e.save()
# Update metadata to print Goodbye instead of Hello
# We simply change the args passed to the task
e.args = ["Goodbye"]
e.save()
# Delete task
e.delete()
def delete_task(mapper, connection, target):
celery_app = celery.get_celery_app()
entry = RedBeatSchedulerEntry.from_key(target.get_redis_key(), celery_app)
entry.delete()
def test_from_key_missing_meta(self):
initial = self.create_entry().save()
loaded = RedBeatSchedulerEntry.from_key(initial.key, self.app)
self.assertEqual(initial.task, loaded.task)
self.assertIsNone(loaded.last_run_at)
def test_from_key_nonexistent_key(self):
with self.assertRaises(KeyError):
RedBeatSchedulerEntry.from_key('doesntexist', self.app)
