This document describes the current stable version of Celery (3.1). For development docs, go here.

celery.worker.autoscale

celery.worker.autoscale

This module implements the internal thread responsible for growing and shrinking the pool according to the current autoscale settings.

The autoscale thread is only enabled if --autoscale has been enabled on the command-line.

class celery.worker.autoscale.Autoscaler(pool, max_concurrency, min_concurrency=0, worker=None, keepalive=30.0, mutex=None)

body()

force_scale_down(n)

force_scale_up(n)

info()

maybe_scale(req=None)

processes

qty

scale_down(n)

scale_up(n)

update(max=None, min=None)

class celery.worker.autoscale.WorkerComponent(w, **kwargs)

conditional = True

create(w)

label = 'Autoscaler'

name = u'celery.worker.autoscale.WorkerComponent'

register_with_event_loop(w, hub)

requires = (step:celery.worker.components.Pool{(step:celery.worker.components.Queues{(step:celery.worker.components.Hub{(step:celery.worker.components.Timer{()},)},)},)},)