Hello everyone,
I have dug into this problem and I realized that this piece of code is working
on a CentOS 6.6 running Openstack stable icehouse installed with RDO.
My guess is that there may be an issue either with the operating system or with
the devstack installation.
If you have any clue, please let me know.
Thanks & best regards,
Romain Ziba.
De : ZIBA Romain
Envoyé : mercredi 18 mars 2015 13:07
À : openstack-dev@lists.openstack.org
Objet : Stable/icehouse: oslo.messaging RPCClient segmentation fault core dumped
Hello everyone,
I am having an issue using the RPCClient of the oslo.messaging package
delivered through the stable/icehouse release of devstack (v 1.4.1).
With this simple script:
########################################################
import sys
from oslo.config import cfg
from oslo import messaging
from project.openstack.common import log
LOG = log.getLogger(__name__)
log_levels = (cfg.CONF.default_log_levels +
['stevedore=INFO', 'keystoneclient=INFO'])
cfg.set_defaults(log.log_opts, default_log_levels=log_levels)
argv = sys.argv
cfg.CONF(argv[1:], project='test_rpc_server')
log.setup('test_rpc_server')
transport_url = 'rabbit://guest:guest@localhost:5672/'
transport = messaging.get_transport(cfg.CONF, transport_url)
target = messaging.Target(topic='test_rpc', server='server1')
client = messaging.RPCClient(transport, target)
ctxt = {'some':'context'}
try:
res = client.call(ctxt, 'call_method_1')
except Exception as e:
LOG.debug(e)
print res
########################################################
svcdev@svcdev-openstack: python rpc_client.py
2015-03-18 11:44:01.018 15967 INFO oslo.messaging._drivers.impl_rabbit [-]
Connecting to AMQP server on localhost:5672
2015-03-18 11:44:01.125 15967 INFO oslo.messaging._drivers.impl_rabbit [-]
Connected to AMQP server on localhost:5672
2015-03-18 11:44:01.134 15967 INFO oslo.messaging._drivers.impl_rabbit [-]
Connecting to AMQP server on localhost:5672
2015-03-18 11:44:01.169 15967 INFO oslo.messaging._drivers.impl_rabbit [-]
Connected to AMQP server on localhost:5672
Segmentation fault (core dumped)
The last Python method called is the following one (in librabbitmq package, v
1.0.3):
def basic_publish(self, body, exchange='', routing_key='',
mandatory=False, immediate=False, **properties):
if isinstance(body, tuple):
body, properties = body
elif isinstance(body, self.Message):
body, properties = body.body, body.properties
return self.connection._basic_publish(self.channel_id,
body, exchange, routing_key, properties,
mandatory or False, immediate or False)
The script crashes after trying to call _basic_publish.
For information, I've got the trusty's rabbitmq-server version (v 3.2.4-1).
Plus, replacing the call method by a cast method makes that a message is queued.
Could you please tell me if I'm doing something wrong? Is there a bug in the
c-library used by librabbitmq?
Thanks beforehand,
Romain Ziba.
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