def onJoin(self, details):
from autobahn.wamp.types import SubscribeOptions
self.log.debug("Joined realm '{realm}' on node management router", realm=details.realm)
# When a (native) worker process has connected back to the router of
# the node controller, the worker will publish this event
# to signal it's readyness.
#
def on_worker_ready(res):
worker_id = res['id']
if worker_id in self._workers:
ready = self._workers[worker_id].ready
if not ready.called:
# fire the Deferred previously stored for
# signaling "worker ready"
ready.callback(worker_id)
else:
self.log.error("Internal error: on_worker_ready() fired for process {process}, but already called earlier",
process=worker_id)
else:
self.log.error("Internal error: on_worker_ready() fired for process {process}, but no process with that ID",
process=worker_id)
self.subscribe(on_worker_ready, u'crossbar.worker..on_worker_ready', SubscribeOptions(match=u'wildcard'))
yield NativeProcess.onJoin(self, details)
# above upcall registers procedures we have marked with @wamp.register(None)
# we need to catch SIGINT here to properly shutdown the
# node explicitly (a Twisted system trigger wouldn't allow us to distinguish
# different reasons/origins of exiting ..)
def signal_handler(_signal, frame):
if _signal == signal.SIGINT:
# CTRL-C'ing Crossbar.io is considered "willful", and hence we want to exit cleanly
self._shutdown_was_clean = True
elif _signal == signal.SIGTERM:
self._shutdown_was_clean = False
else:
# FIXME: can we run into others here?
self._shutdown_was_clean = False
self.log.warn('Controller received SIGINT [signal={signal}]: shutting down node [shutdown_was_clean={shutdown_was_clean}] ..', signal=_signal, shutdown_was_clean=self._shutdown_was_clean)
# the following will shutdown the Twisted reactor in the end
self.shutdown()
signal.signal(signal.SIGINT, signal_handler)
self.log.info('Signal handler installed on process {pid} thread {tid}', pid=os.getpid(), tid=threading.get_ident())
self._started = utcnow()
self.publish(u"crossbar.on_ready")
self.log.debug("Node controller ready")
def onJoin(self, details):
from autobahn.wamp.types import SubscribeOptions
self.log.debug("Joined realm '{realm}' on node management router", realm=details.realm)
# When a (native) worker process has connected back to the router of
# the node controller, the worker will publish this event
# to signal it's readyness.
#
def on_worker_ready(res):
worker_id = res['id']
if worker_id in self._workers:
ready = self._workers[worker_id].ready
if not ready.called:
# fire the Deferred previously stored for
# signaling "worker ready"
ready.callback(worker_id)
else:
self.log.error("Internal error: on_worker_ready() fired for process {process}, but already called earlier",
process=worker_id)
else:
self.log.error("Internal error: on_worker_ready() fired for process {process}, but no process with that ID",
process=worker_id)
self.subscribe(on_worker_ready, u'crossbar.worker..on_worker_ready', SubscribeOptions(match=u'wildcard'))
yield NativeProcess.onJoin(self, details)
# above upcall registers procedures we have marked with @wamp.register(None)
# we need to catch SIGINT here to properly shutdown the
# node explicitly (a Twisted system trigger wouldn't allow us to distinguish
# different reasons/origins of exiting ..)
def signal_handler(_signal, frame):
if _signal == signal.SIGINT:
# CTRL-C'ing Crossbar.io is considered "willful", and hence we want to exit cleanly
self._shutdown_was_clean = True
elif _signal == signal.SIGTERM:
self._shutdown_was_clean = False
else:
# FIXME: can we run into others here?
self._shutdown_was_clean = False
self.log.warn('Controller received SIGINT [signal={signal}]: shutting down node [shutdown_was_clean={shutdown_was_clean}] ..', signal=_signal, shutdown_was_clean=self._shutdown_was_clean)
# the following will shutdown the Twisted reactor in the end
self.shutdown()
signal.signal(signal.SIGINT, signal_handler)
self.log.info('Signal handler installed on process {pid} thread {tid}', pid=os.getpid(), tid=threading.get_ident())
self._started = utcnow()
self.publish(u"crossbar.on_ready")
self.log.debug("Node controller ready")
def onJoin(self, details, publish_ready=True):
"""
Called when worker process has joined the node management realm.
"""
yield NativeProcess.onJoin(self, details)
# above upcall registers all our "@wamp.register(None)" methods
# setup SIGTERM handler to orderly shutdown the worker
def shutdown(sig, frame):
self.log.warn("Native worker received SIGTERM - shutting down ..")
self.shutdown()
signal.signal(signal.SIGTERM, shutdown)
# the worker is ready for work!
if publish_ready:
yield self.publish_ready()
def onJoin(self, details, publish_ready=True):
"""
Called when worker process has joined the node management realm.
"""
yield NativeProcess.onJoin(self, details)
# above upcall registers all our "@wamp.register(None)" methods
# setup SIGTERM handler to orderly shutdown the worker
def shutdown(sig, frame):
self.log.warn("Native worker received SIGTERM - shutting down ..")
self.shutdown()
signal.signal(signal.SIGTERM, shutdown)
# the worker is ready for work!
if publish_ready:
yield self.publish_ready()