Thank you for your answer! “Are you sure cinder use a dedicated vhost? I'm notconviced, if I'm right they all use the default vhost '/'.” Indeed it does, when deployed with openstack-ansible. But I found a way to find the exchange with RMQ Tracing: <https://www.rabbitmq.com/firehose.html> https://www.rabbitmq.com/firehose.html Using the GUI plugin I’ve got all the messages flowing through the cinder vhost and found: The exchange for the notification.* queues is “openstack” not cinder. Sometimes I ask myself if there are any kind of standards for RMQ Communication. :P This may be interesting for someone else to use in their projects. Cheers, Merlin Von: Herve Beraud <hberaud@redhat.com> Gesendet: Freitag, 15. November 2019 11:14 An: Blom, Merlin, NMU-OI <merlin.blom@bertelsmann.de> Cc: openstack-discuss@lists.openstack.org Betreff: Re: [RabbitMQ][cinder] Listen to messages Le ven. 15 nov. 2019 à 10:17, Blom, Merlin, NMU-OI <merlin.blom@bertelsmann.de <mailto:merlin.blom@bertelsmann.de> > a écrit : Hey there, it seems to me as if ask.openstack.org <https://urldefense.proofpoint.com/v2/url?u=http-3A__ask.openstack.org&d=DwMFaQ&c=vo2ie5TPcLdcgWuLVH4y8lsbGPqIayH3XbK3gK82Oco&r=hTUN4-Trlb-8Fh11dR6m5VD1uYA15z7v9WL8kYigkr8&m=I57N0pNdOBJT0zInKg9x19EIcAusOh6tWEYae4pqZec&s=BtHoBhYTWHgOaqVzcSWPazamCNRt3zKyin254OCHTv0&e=> is down, so I ask my question here: I’d like to listen to oslo messages from cinder as I do for neutron and octavia to know what is going on. For me the following code worked for neutron: EXCHANGE_NAME = os.getenv('EXCHANGE_NAME', 'neutron') ROUTING_KEY = os.getenv('ROUTING_KEY', 'notifications.info <https://urldefense.proofpoint.com/v2/url?u=http-3A__notifications.info&d=DwMFaQ&c=vo2ie5TPcLdcgWuLVH4y8lsbGPqIayH3XbK3gK82Oco&r=hTUN4-Trlb-8Fh11dR6m5VD1uYA15z7v9WL8kYigkr8&m=I57N0pNdOBJT0zInKg9x19EIcAusOh6tWEYae4pqZec&s=88zOXIjCk6Wj0OZJoyQ3zn7HKlGt_vUabkgC5UbLy8I&e=> ') QUEUE_NAME = os.getenv('QUEUE_NAME', 'messaging_queue') BROKER_URI = os.getenv('BROKER_URI', 'UNDEFINED') BROKER_PASSWORD = os.getenv('BROKER_PASSWORD', '') class Messages(ConsumerMixin): def __init__(self, connection): self.connection = connection return def get_consumers(self, consumer, channel): exchange = Exchange(EXCHANGE_NAME, type="topic", durable=False) queue = Queue(QUEUE_NAME, exchange, routing_key=ROUTING_KEY, durable=False, auto_delete=True, no_ack=True) return [consumer(queues=[queue], callbacks=[self.on_message])] def on_message(self, body, message): try: print(message) except Exception as e: log.info <https://urldefense.proofpoint.com/v2/url?u=http-3A__log.info&d=DwMFaQ&c=vo2ie5TPcLdcgWuLVH4y8lsbGPqIayH3XbK3gK82Oco&r=hTUN4-Trlb-8Fh11dR6m5VD1uYA15z7v9WL8kYigkr8&m=I57N0pNdOBJT0zInKg9x19EIcAusOh6tWEYae4pqZec&s=eBcN-xWc8Px2a6Np6bf9UZ4Um_ODRGrU9YXh6MfJNpg&e=> (repr(e)) if __name__ == "__main__": log.info <https://urldefense.proofpoint.com/v2/url?u=http-3A__log.info&d=DwMFaQ&c=vo2ie5TPcLdcgWuLVH4y8lsbGPqIayH3XbK3gK82Oco&r=hTUN4-Trlb-8Fh11dR6m5VD1uYA15z7v9WL8kYigkr8&m=I57N0pNdOBJT0zInKg9x19EIcAusOh6tWEYae4pqZec&s=eBcN-xWc8Px2a6Np6bf9UZ4Um_ODRGrU9YXh6MfJNpg&e=> ("Connecting to broker {}".format(BROKER_URI)) with BrokerConnection(hostname=BROKER_URI, userid='messaging', password=BROKER_PASSWORD, virtual_host='/'+EXCHANGE_NAME, heartbeat=4, failover_strategy='round-robin') as connection: Messaging(connection).run() BrokerConnection.connection.close() But on the cinder vhost (/cinder) Are you sure cinder use a dedicated vhost? I'm notconviced, if I'm right they all use the default vhost '/'. I can’t find an exchange that the code is working on. (cinder, cinder-backup, …) I tried using the rabbitmq tracer: <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.rabbitmq.com_firehose.html&d=DwMFaQ&c=vo2ie5TPcLdcgWuLVH4y8lsbGPqIayH3XbK3gK82Oco&r=hTUN4-Trlb-8Fh11dR6m5VD1uYA15z7v9WL8kYigkr8&m=I57N0pNdOBJT0zInKg9x19EIcAusOh6tWEYae4pqZec&s=GH8hzzf_x1wZWdtzgEt_LzG7EyhuIYk6z0ReemFPjag&e=> https://www.rabbitmq.com/firehose.html And got all the cinder messages but I don’t want to use it in production because of performance issues. Does anyone have an idea how to find the correct exchange for the notification info queue in cinder? Cheers, Merlin -- Hervé Beraud Senior Software Engineer Red Hat - Openstack Oslo irc: hberaud -----BEGIN PGP SIGNATURE----- wsFcBAABCAAQBQJb4AwCCRAHwXRBNkGNegAALSkQAHrotwCiL3VMwDR0vcja10Q+ Kf31yCutl5bAlS7tOKpPQ9XN4oC0ZSThyNNFVrg8ail0SczHXsC4rOrsPblgGRN+ RQLoCm2eO1AkB0ubCYLaq0XqSaO+Uk81QxAPkyPCEGT6SRxXr2lhADK0T86kBnMP F8RvGolu3EFjlqCVgeOZaR51PqwUlEhZXZuuNKrWZXg/oRiY4811GmnvzmUhgK5G 5+f8mUg74hfjDbR2VhjTeaLKp0PhskjOIKY3vqHXofLuaqFDD+WrAy/NgDGvN22g glGfj472T3xyHnUzM8ILgAGSghfzZF5Skj2qEeci9cB6K3Hm3osj+PbvfsXE/7Kw m/xtm+FjnaywZEv54uCmVIzQsRIm1qJscu20Qw6Q0UiPpDFqD7O6tWSRKdX11UTZ hwVQTMh9AKQDBEh2W9nnFi9kzSSNu4OQ1dRMcYHWfd9BEkccezxHwUM4Xyov5Fe0 qnbfzTB1tYkjU78loMWFaLa00ftSxP/DtQ//iYVyfVNfcCwfDszXLOqlkvGmY1/Y F1ON0ONekDZkGJsDoS6QdiUSn8RZ2mHArGEWMV00EV5DCIbCXRvywXV43ckx8Z+3 B8qUJhBqJ8RS2F+vTs3DTaXqcktgJ4UkhYC2c1gImcPRyGrK9VY0sCT+1iA+wp/O v6rDpkeNksZ9fFSyoY2o =ECSj -----END PGP SIGNATURE-----