proj.celery: 4. an attribute named proj.celery.app, or 5. an attribute named proj.celery.celery, or 6. Any attribute in the module proj.celery where the value is a Celery application. This scheme mimics 2) >>> res.get(timeout=1) 4 You can find the task’s id by looking at the id attribute: >>> res.id d6b3aea2-fb9b-4ebc-8da4-848818db9114 You can also inspect the exception and traceback if the task raised group >>> from proj.tasks import add >>> group(add.s(i, i) for i in xrange(10))().get() [0, 2, 4, 6, 8, 10, 12, 14, 16, 18] Partial group >>> g = group(add.s(i) for i in xrange(10)) >>> g(10).get()

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3 First steps with Celery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 6 Contributing 91 6.1 Community Code of Conduct . . . . . . . . . . . . . . . . . . . . . . . . . . we need to create a RabbitMQ user, a virtual host and allow that user access to that virtual host: 6 Chapter 1. Getting Started Celery Documentation, Release 2.1.4 $ rabbitmqctl add_user myuser mypassword

we need to create a RabbitMQ user, a virtual host and allow that user access to that virtual host: 6 Chapter 1. Getting Started Celery Documentation, Release 2.3.5 $ rabbitmqctl add_user myuser mypassword execution (see Executing Tasks). >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message midnight. crontab(minute=0, hour="*/3") Execute every three hours: 3am, 6am, 9am, noon, 3pm, 6pm, 9pm. crontab(minute=0, hour=[0,3,6,9,12,15,18,21]) Same as previous. crontab(minute="*/15") Execute every

execution (see Executing Tasks). >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message midnight. crontab(minute=0, hour=”*/3”) Execute every three hours: 3am, 6am, 9am, noon, 3pm, 6pm, 9pm. crontab(minute=0, hour=[0,3,6,9,12,15,18,21]) Same as previous. crontab(minute=”*/15”) Execute every crontab(minute=”*/10”, hour=”3,17,22”, day_of_week=”thu,fri”) Execute every ten minutes, but only between 3-4 am, 5-6 pm and 10-11 pm on Thursdays or Fridays. crontab(minute=0, hour=”*/2,*/3”) Execute every even hour

Brokers Release 2.5 Date February 04, 2014 Celery supports several message transport alternatives. 6 Chapter 1. Getting Started Celery Documentation, Release 2.5.5 1.2.1 Using RabbitMQ • Installation execution (see Executing Tasks). >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message midnight. crontab(minute=0, hour="*/3") Execute every three hours: 3am, 6am, 9am, noon, 3pm, 6pm, 9pm. crontab(minute=0, hour=[0,3,6,9,12,15,18,21]) Same as previous. crontab(minute="*/15") Execute every

execution (see Executing Tasks). >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message midnight. crontab(minute=0, hour="*/3") Execute every three hours: 3am, 6am, 9am, noon, 3pm, 6pm, 9pm. crontab(minute=0, hour= [0,3,6,9,12,15,18,21]) Same as previous. crontab(minute="*/15") Execute every crontab(minute="*/10", hour="3,17,22", day_of_week="thu,fri") Execute every ten minutes, but only between 3-4 am, 5-6 pm and 10-11 pm on Thursdays or Fridays. crontab(minute=0, hour="*/2,*/3") Execute every even hour

myvhost myuser ".*" ".*" ".*" See the RabbitMQ Admin Guide for more information about access control. 6 Chapter 1. Getting Started Celery Documentation, Release 2.0.3 (stable) 1.2.3 Installing RabbitMQ information about executing tasks. >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message midnight. crontab(minute=0, Execute every three hours—at midnight, 3am, 6am, 9am, noon, 3pm, 6pm, 9pm. crontab(minute=0, hour=[0,3,6,9,12,15,18,21]) Same as previous. crontab(minute=”*/15”) Execute every

execution (see Executing Tasks). >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message midnight. crontab(minute=0, hour="*/3") Execute every three hours: 3am, 6am, 9am, noon, 3pm, 6pm, 9pm. crontab(minute=0, hour= [0,3,6,9,12,15,18,21]) Same as previous. crontab(minute="*/15") Execute every crontab(minute="*/10", hour="3,17,22", day_of_week="thu,fri") Execute every ten minutes, but only between 3-4 am, 5-6 pm and 10-11 pm on Thursdays or Fridays. crontab(minute=0, hour="*/2,*/3") Execute every even hour

proj.celery: 4. an attribute named proj.celery.app, or 5. an attribute named proj.celery.celery, or 6. Any attribute in the module proj.celery where the value is a Celery application. This scheme mimics 2) >>> res.get(timeout=1) 4 You can find the task’s id by looking at the id attribute: >>> res.id d6b3aea2-fb9b-4ebc-8da4-848818db9114 You can also inspect the exception and traceback if the task raised import group >>> from proj.tasks import add >>> group(add.s(i, i) for i in range(10))().get() [0, 2, 4, 6, 8, 10, 12, 14, 16, 18] Partial group >>> g = group(add.s(i) for i in range(10)) >>> g(10).get() [10

in your home directory if you want, as one of the strengths of homebrew is that it’s relocateable. 6 Chapter 1. Getting Started Celery Documentation, Release 1.0.6 (stable) Homebrew is actually a git ing Tasks for more information. >>> from tasks import add >>> add.delay(4, 4) 6-39a2-4e52-837b-d80d33efb22d> At this point, the task has been sent to the message broker. The message different message than in this channel. You can acknowledge the message we received using basic.ack: 6> basic.ack 1 ok. To clean up after our test session we should delete the entities we created: 7> queue