This document describes an older version of Celery (2.5). For the latest stable version please go here.
The mediator is an internal thread that moves tasks from an internal Queue to the worker pool.
This is only used if rate limits are enabled, as it moves messages from the rate limited queue (which holds tasks that are allowed to be processed) to the pool. Disabling rate limits will also disable this machinery, and can improve performance.
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license: | BSD, see LICENSE for more details. |