def run(api_port=8082, address=None, unix_socket=None, scheduler=None, responder=None):
"""
Runs one instance of the API server.
"""
if scheduler is None:
scheduler = Scheduler()
# load scheduler state
scheduler.load()
_init_api(
scheduler=scheduler,
responder=responder,
api_port=api_port,
address=address,
unix_socket=unix_socket,
)
# prune work DAG every 60 seconds
pruner = tornado.ioloop.PeriodicCallback(scheduler.prune, 60000)
pruner.start()
def shutdown_handler(signum, frame):
exit_handler()
sys.exit(0)
@atexit.register
def exit_handler():
logger.info("Scheduler instance shutting down")
scheduler.dump()
stop()
signal.signal(signal.SIGINT, shutdown_handler)
signal.signal(signal.SIGTERM, shutdown_handler)
if os.name == 'nt':
signal.signal(signal.SIGBREAK, shutdown_handler)
else:
signal.signal(signal.SIGQUIT, shutdown_handler)
logger.info("Scheduler starting up")
tornado.ioloop.IOLoop.instance().start()
