This document describes Celery 2.3. For development docs, go here.

celery.worker

celery.worker.WORKER_SIGIGNORE = frozenset(['SIGINT'])

List of signals to ignore when a child process starts.

celery.worker.WORKER_SIGRESET = frozenset(['SIGHUP', 'SIGTERM', 'SIGTTOU', 'SIGTTIN', 'SIGUSR1'])

List of signals to reset when a child process starts.

class celery.worker.WorkController(concurrency=None, logfile=None, loglevel=None, send_events=None, hostname=None, ready_callback=<function noop at 0x1383140>, embed_clockservice=False, pool_cls=None, consumer_cls=None, mediator_cls=None, eta_scheduler_cls=None, schedule_filename=None, task_time_limit=None, task_soft_time_limit=None, max_tasks_per_child=None, pool_putlocks=None, db=None, prefetch_multiplier=None, eta_scheduler_precision=None, disable_rate_limits=None, autoscale=None, autoscaler_cls=None, scheduler_cls=None, app=None)

Unmanaged worker instance.

CLOSE = 2

RUN = 1

TERMINATE = 3

concurrency = None

The number of simultaneous processes doing work (default: CELERYD_CONCURRENCY)

consumer = None

Consumer instance.

embed_clockservice = None

If True, celerybeat is embedded, running in the main worker process as a thread.

logfile = None

The logfile used, if no logfile is specified it uses stderr (default: CELERYD_LOG_FILE).

logger = None

The logging.Logger instance used for logging.

loglevel = 40

The loglevel used (default: logging.INFO)

mediator = None

Instance of celery.worker.mediator.Mediator.

on_timer_error(exc_info)

on_timer_tick(delay)

pool = None

The pool instance used.

process_task(request)

Process task by sending it to the pool of workers.

ready_queue = None

The internal queue object that holds tasks ready for immediate processing.

send_events = False

Enable the sending of monitoring events, these events can be captured by monitors (celerymon).

start()

Starts the workers main loop.

stop(in_sighandler=False)

Graceful shutdown of the worker server.

terminate(in_sighandler=False)

Not so graceful shutdown of the worker server.

celery.worker.process_initializer(app, hostname)

Initializes the process so it can be used to process tasks.

Used for multiprocessing environments.