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celery.bin.multi

Examples

# Single worker with explicit name and events enabled.
$ celery multi start Leslie -E

# Pidfiles and logfiles are stored in the current directory
# by default.  Use --pidfile and --logfile argument to change
# this.  The abbreviation %N will be expanded to the current
# node name.
$ celery multi start Leslie -E --pidfile=/var/run/celery/%N.pid
                                --logfile=/var/log/celery/%N.log


# You need to add the same arguments when you restart,
# as these are not persisted anywhere.
$ celery multi restart Leslie -E --pidfile=/var/run/celery/%N.pid
                                 --logfile=/var/run/celery/%N.log

# To stop the node, you need to specify the same pidfile.
$ celery multi stop Leslie --pidfile=/var/run/celery/%N.pid

# 3 workers, with 3 processes each
$ celery multi start 3 -c 3
celery worker -n celery1@myhost -c 3
celery worker -n celery2@myhost -c 3
celery worker -n celery3@myhost -c 3

# start 3 named workers
$ celery multi start image video data -c 3
celery worker -n image@myhost -c 3
celery worker -n video@myhost -c 3
celery worker -n data@myhost -c 3

# specify custom hostname
$ celery multi start 2 --hostname=worker.example.com -c 3
celery worker -n celery1@worker.example.com -c 3
celery worker -n celery2@worker.example.com -c 3

# specify fully qualified nodenames
$ celery multi start foo@worker.example.com bar@worker.example.com -c 3

# Advanced example starting 10 workers in the background:
#   * Three of the workers processes the images and video queue
#   * Two of the workers processes the data queue with loglevel DEBUG
#   * the rest processes the default' queue.
$ celery multi start 10 -l INFO -Q:1-3 images,video -Q:4,5 data
    -Q default -L:4,5 DEBUG

# You can show the commands necessary to start the workers with
# the 'show' command:
$ celery multi show 10 -l INFO -Q:1-3 images,video -Q:4,5 data
    -Q default -L:4,5 DEBUG

# Additional options are added to each celery worker' comamnd,
# but you can also modify the options for ranges of, or specific workers

# 3 workers: Two with 3 processes, and one with 10 processes.
$ celery multi start 3 -c 3 -c:1 10
celery worker -n celery1@myhost -c 10
celery worker -n celery2@myhost -c 3
celery worker -n celery3@myhost -c 3

# can also specify options for named workers
$ celery multi start image video data -c 3 -c:image 10
celery worker -n image@myhost -c 10
celery worker -n video@myhost -c 3
celery worker -n data@myhost -c 3

# ranges and lists of workers in options is also allowed:
# (-c:1-3 can also be written as -c:1,2,3)
$ celery multi start 5 -c 3  -c:1-3 10
celery worker -n celery1@myhost -c 10
celery worker -n celery2@myhost -c 10
celery worker -n celery3@myhost -c 10
celery worker -n celery4@myhost -c 3
celery worker -n celery5@myhost -c 3

# lists also works with named workers
$ celery multi start foo bar baz xuzzy -c 3 -c:foo,bar,baz 10
celery worker -n foo@myhost -c 10
celery worker -n bar@myhost -c 10
celery worker -n baz@myhost -c 10
celery worker -n xuzzy@myhost -c 3

class celery.bin.multi.MultiTool(env=None, fh=None, quiet=False, verbose=False, no_color=False, nosplash=False)

DOWN None

FAILED None

OK None

colored None

error(msg=None)

execute_from_commandline(argv, cmd=u'celery worker')

expand(argv, cmd=None)

get(argv, cmd)

getpids(p, cmd, callback=None)

help(argv, cmd=None)

info(msg, newline=True)

kill(argv, cmd)

names(argv, cmd)

node_alive(pid)

note(msg, newline=True)

restart(argv, cmd)

retcode = 0

say(m, newline=True)

show(argv, cmd)

shutdown_nodes(nodes, sig=15, retry=None, callback=None)

signal_node(nodename, pid, sig)

splash()

start(argv, cmd)

stop(argv, cmd, retry=None, callback=None)

stop_verify(argv, cmd)

stopwait(argv, cmd)

usage()

waitexec(argv, path='/usr/bin/python')

with_detacher_default_options(p)