Differences between revisions 5 and 6

Celery

Celery is an asynchronous task queue/job queue based on distributed message passing.

http://docs.celeryproject.org/en/latest/getting-started/first-steps-with-celery.html

Slackware 14 installation

easy_install celery

Check installation:

   1 python
   2 Python 2.7.3 (default, Jul  3 2012, 19:58:39) 
   3 [GCC 4.7.1] on linux2
   4 Type "help", "copyright", "credits" or "license" for more information.
   5 >>> import celery
   6 >>> celery.__version__
   7 '3.1.7'
   8 >>>

Test app with Redis

Run redis:

   1 $redis-server & 
   2 $redis-cli     
   3 redis 127.0.0.1:6379> quit

App:

   1 from celery import Celery
   2 
   3 app = Celery('tasks', broker='redis://localhost')
   4 app.conf.update(CELERY_RESULT_BACKEND="redis://")
   5 
   6 @app.task
   7 def add(x, y):
   8     return x + y

   1 $celery -A celeryTest worker --loglevel=info

Run task

   1 $ python
   2 Python 2.7.3 (default, Jul  3 2012, 19:58:39) 
   3 [GCC 4.7.1] on linux2
   4 Type "help", "copyright", "credits" or "license" for more information.
   5 >>> from celeryTest import add
   6 >>> xx=add.delay(3,3)
   7 >>> xx.ready()
   8 True
   9 >>> print(xx.result)
  10 6

-  ⇤ ← Revision 5 as of 2014-01-08 17:49:20 → 
  Size: 1175
  Editor: bl13-13-184
  Comment:
+   ← Revision 6 as of 2014-01-08 18:13:52 → ⇥
  Size: 1215
  Editor: bl13-13-184
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 34:
+app.conf.update(CELERY_RESULT_BACKEND="redis://")
-Line 44:
+Line 45:
 Line 52:
->>> add.delay(3,3)
<AsyncResult: 7890ae15-000b-4d93-9378-3fbb3fb00f26>
>>>
+>>> xx=add.delay(3,3)
>>> xx.ready()
True
>>> print(xx.result)
6