zulip/zerver/management/commands/process_queue.py

42 lines
1.4 KiB
Python

from __future__ import absolute_import
from django.core.management.base import BaseCommand
from django.core.management import CommandError
from django.conf import settings
from zerver.worker.queue_processors import get_worker
import sys
import signal
import logging
class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('queue_name', metavar='<queue name>', type=str,
help="queue to process")
parser.add_argument('worker_num', metavar='<worker number>', type=int, nargs='?', default=0,
help="worker label")
help = "Runs a queue processing worker"
def handle(self, *args, **options):
logging.basicConfig()
logger = logging.getLogger('process_queue')
queue_name = options['queue_name']
worker_num = options['worker_num']
if not settings.USING_RABBITMQ:
logger.error("Cannot run a queue processor when USING_RABBITMQ is False!")
sys.exit(1)
logger.info("Worker %d connecting to queue %s" % (worker_num, queue_name))
worker = get_worker(queue_name)
def signal_handler(signal, frame):
logger.info("Worker %d disconnecting from queue %s" % (worker_num, queue_name))
worker.stop()
sys.exit(0)
signal.signal(signal.SIGTERM, signal_handler)
signal.signal(signal.SIGINT, signal_handler)
worker.start()