celery/celery — pull request #1229 by mpavlov (2013-03-07 20:09:43+00:00)
Title: Pid based status check

This pull request resolves https://github.com/celery/celery/issues/1217.

Highlights:
* status check is now performed by checking the pids of celery nodes instead of by sending messages to them
* there is now a sleep delay after `celeryd-multi` invocations, to allow enough time for asynchronous steps (such as creating/removing pid files) to complete