22 lines
770 B
Text
22 lines
770 B
Text
celery-singleton uses the JSON representation of a task's delay() or
|
|
apply_async() arguments to generate a unique lock and stores it in redis. By
|
|
default it uses the redis server of the celery result backend. If you use a
|
|
different/no result backend or want to use a different redis server for
|
|
celery-singleton, refer the configuration section for how to customize the
|
|
redis.
|
|
|
|
import time
|
|
from celery_singleton import Singleton
|
|
from somewhere import celery_app
|
|
|
|
@celery_app.task(base=Singleton)
|
|
def do_stuff(*args, **kwargs):
|
|
time.sleep(4)
|
|
return 'I just woke up'
|
|
|
|
# run the task as normal
|
|
async_result = do_stuff.delay(1, 2, 3, a='b')
|
|
async_result2 = do_stuff.delay(1, 2, 3, a='b')
|
|
|
|
# These are the same, task is only queued once
|
|
assert async_result == async_result2
|