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celery.bin.worker

The celery worker command (previously known as celeryd)

参见

See Preload Options.

-c, --concurrency

Number of child processes processing the queue. The default is the number of CPUs available on your system.

-P, --pool

Pool implementation:

prefork (default), eventlet, gevent, solo or threads.

-f, --logfile

Path to log file. If no logfile is specified, stderr is used.

-l, --loglevel

Logging level, choose between DEBUG, INFO, WARNING, ERROR, CRITICAL, or FATAL.

-n, --hostname

Set custom hostname, e.g. ‘w1.%h’. Expands: %h (hostname), %n (name) and %d, (domain).

-B, --beat

Also run the celery beat periodic task scheduler. Please note that there must only be one instance of this service.

-Q, --queues

List of queues to enable for this worker, separated by comma. By default all configured queues are enabled. Example: -Q video,image

-I, --include

Comma separated list of additional modules to import. Example: -I foo.tasks,bar.tasks

-s, --schedule

Path to the schedule database if running with the -B option. Defaults to celerybeat-schedule. The extension ”.db” may be appended to the filename.

-O

Apply optimization profile. Supported: default, fair

--scheduler

Scheduler class to use. Default is celery.beat.PersistentScheduler

-S, --statedb

Path to the state database. The extension ‘.db’ may be appended to the filename. Default: {default}

-E, --events

Send events that can be captured by monitors like celery events, celerymon, and others.

--without-gossip

Do not subscribe to other workers events.

--without-mingle

Do not synchronize with other workers at startup.

--without-heartbeat

Do not send event heartbeats.

--purge

Purges all waiting tasks before the daemon is started. WARNING: This is unrecoverable, and the tasks will be deleted from the messaging server.

--time-limit

Enables a hard time limit (in seconds int/float) for tasks.

--soft-time-limit

Enables a soft time limit (in seconds int/float) for tasks.

--maxtasksperchild

Maximum number of tasks a pool worker can execute before it’s terminated and replaced by a new worker.

--pidfile

Optional file used to store the workers pid.

The worker will not start if this file already exists and the pid is still alive.

--autoscale

Enable autoscaling by providing max_concurrency, min_concurrency. Example:

--autoscale=10,3

(always keep 3 processes, but grow to 10 if necessary)

--autoreload

Enable autoreloading.

--no-execv

Don’t do execv after multiprocessing child fork.

class celery.bin.worker.worker(app=None, get_app=None, no_color=False, stdout=None, stderr=None, quiet=False, on_error=None, on_usage_error=None)

Start worker instance.

Examples:

celery worker --app=proj -l info
celery worker -A proj -l info -Q hipri,lopri

celery worker -A proj --concurrency=4
celery worker -A proj --concurrency=1000 -P eventlet

celery worker --autoscale=10,0

doc = u'\n\nThe :program:`celery worker` command (previously known as ``celeryd``)\n\n.. program:: celery worker\n\n.. seealso::\n\n See :ref:`preload-options`.\n\n.. cmdoption:: -c, --concurrency\n\n Number of child processes processing the queue. The default\n is the number of CPUs available on your system.\n\n.. cmdoption:: -P, --pool\n\n Pool implementation:\n\n prefork (default), eventlet, gevent, solo or threads.\n\n.. cmdoption:: -f, --logfile\n\n Path to log file. If no logfile is specified, `stderr` is used.\n\n.. cmdoption:: -l, --loglevel\n\n Logging level, choose between `DEBUG`, `INFO`, `WARNING`,\n `ERROR`, `CRITICAL`, or `FATAL`.\n\n.. cmdoption:: -n, --hostname\n\n Set custom hostname, e.g. \'w1.%h\'. Expands: %h (hostname),\n %n (name) and %d, (domain).\n\n.. cmdoption:: -B, --beat\n\n Also run the `celery beat` periodic task scheduler. Please note that\n there must only be one instance of this service.\n\n.. cmdoption:: -Q, --queues\n\n List of queues to enable for this worker, separated by comma.\n By default all configured queues are enabled.\n Example: `-Q video,image`\n\n.. cmdoption:: -I, --include\n\n Comma separated list of additional modules to import.\n Example: -I foo.tasks,bar.tasks\n\n.. cmdoption:: -s, --schedule\n\n Path to the schedule database if running with the `-B` option.\n Defaults to `celerybeat-schedule`. The extension ".db" may be\n appended to the filename.\n\n.. cmdoption:: -O\n\n Apply optimization profile. Supported: default, fair\n\n.. cmdoption:: --scheduler\n\n Scheduler class to use. Default is celery.beat.PersistentScheduler\n\n.. cmdoption:: -S, --statedb\n\n Path to the state database. The extension \'.db\' may\n be appended to the filename. Default: {default}\n\n.. cmdoption:: -E, --events\n\n Send events that can be captured by monitors like :program:`celery events`,\n `celerymon`, and others.\n\n.. cmdoption:: --without-gossip\n\n Do not subscribe to other workers events.\n\n.. cmdoption:: --without-mingle\n\n Do not synchronize with other workers at startup.\n\n.. cmdoption:: --without-heartbeat\n\n Do not send event heartbeats.\n\n.. cmdoption:: --purge\n\n Purges all waiting tasks before the daemon is started.\n **WARNING**: This is unrecoverable, and the tasks will be\n deleted from the messaging server.\n\n.. cmdoption:: --time-limit\n\n Enables a hard time limit (in seconds int/float) for tasks.\n\n.. cmdoption:: --soft-time-limit\n\n Enables a soft time limit (in seconds int/float) for tasks.\n\n.. cmdoption:: --maxtasksperchild\n\n Maximum number of tasks a pool worker can execute before it\'s\n terminated and replaced by a new worker.\n\n.. cmdoption:: --pidfile\n\n Optional file used to store the workers pid.\n\n The worker will not start if this file already exists\n and the pid is still alive.\n\n.. cmdoption:: --autoscale\n\n Enable autoscaling by providing\n max_concurrency, min_concurrency. Example::\n\n --autoscale=10,3\n\n (always keep 3 processes, but grow to 10 if necessary)\n\n.. cmdoption:: --autoreload\n\n Enable autoreloading.\n\n.. cmdoption:: --no-execv\n\n Don\'t do execv after multiprocessing child fork.\n\n'

enable_config_from_cmdline = True

get_options()

maybe_detach(argv, dopts=[u'-D', u'--detach'])

namespace = u'celeryd'

run(hostname=None, pool_cls=None, app=None, uid=None, gid=None, loglevel=None, logfile=None, pidfile=None, state_db=None, **kwargs)

run_from_argv(prog_name, argv=None, command=None)

supports_args = False

with_pool_option(argv)

celery.bin.worker.main(app=None)