Public bug reported:
While attempting to update fixed_ip attribute of neutron port, get this error:
2017-06-29 02:55:58.856 37283 ERROR oslo.messaging._drivers.impl_rabbit
[req-2ea397ae-d5fd-4860-aca6-e633bba0d84a
0688b01e6439ca32d698d20789d52169126fb41fb1a4ddafcebb97d854e836c9
2d374653dc914c2e877fb6900ef28ccd - - -] Failed to publish message to topic
'q-agent-notifier-l2population-update_fanout': Basic.publish: (404) NOT_FOUND -
no exchange 'q-agent-notifier-l2population-update_fanout' in vhost '/'
Stack trace from neutron server log :
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
[req-2ea397ae-d5fd-4860-aca6-e633bba0d84a
0688b01e6439ca32d698d20789d52169126fb41fb1a4ddafcebb97d854e836c9
2d374653dc914c2e877fb6900ef28ccd - - -] Mechanism driver 'l2population' failed
in update_port_postcommit
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers Traceback
(most recent call last):
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/managers.py", line 408,
in _call_on_drivers
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
getattr(driver.obj, method_name)(context)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py",
line 156, in update_port_postcommit
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self._fixed_ips_changed(context, orig, port, diff_ips)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py",
line 134, in _fixed_ips_changed
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.rpc_ctx, {'chg_ip': upd_fdb_entries})
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/rpc.py",
line 87, in update_fdb_entries
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
fdb_entries)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/rpc.py",
line 49, in _notification_fanout
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
cctxt.cast(context, method, fdb_entries=fdb_entries)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 147, in
cast
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.transport._send(self.target, msg_ctxt, msg, retry=self.retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 97, in
_send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
timeout=timeout, retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line
458, in send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line
432, in _send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
conn.fanout_send(target.topic, msg, retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
1295, in fanout_send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self._ensure_publishing(self._publish, exchange, msg, retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
1170, in _ensure_publishing
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.ensure(method, retry=retry, error_callback=_error_callback)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
817, in ensure
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers ret,
channel = autoretry_method()
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/connection.py", line 436, in _ensured
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
fun(*args, **kwargs)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/connection.py", line 508, in __call__
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
fun(*args, channel=channels[0], **kwargs), channels[0]
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
793, in execute_method
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers method()
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
1201, in _publish
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
compression=self.kombu_compression)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/messaging.py", line 172, in publish
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
routing_key, mandatory, immediate, exchange, declare)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/messaging.py", line 188, in _publish
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
mandatory=mandatory, immediate=immediate,
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/channel.py", line 2130, in
basic_publish_confirm
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.wait([(60, 80)])
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/abstract_channel.py", line 69, in wait
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
self.dispatch_method(method_sig, args, content)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/abstract_channel.py", line 87, in
dispatch_method
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
amqp_method(self, args)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/channel.py", line 241, in _close
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
reply_code, reply_text, (class_id, method_id), ChannelError,
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers NotFound:
Basic.publish: (404) NOT_FOUND - no exchange
'q-agent-notifier-l2population-update_fanout' in vhost '/'
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
2017-06-29 02:55:58.903 37283 ERROR neutron.plugins.ml2.plugin
[req-2ea397ae-d5fd-4860-aca6-e633bba0d84a
0688b01e6439ca32d698d20789d52169126fb41fb1a4ddafcebb97d854e836c9
2d374653dc914c2e877fb6900ef28ccd - - -]
mechanism_manager.update_port_postcommit failed for port
799abd6f-c1d7-4fd3-8a77-65f1b0bf9515
In rabbitmq log
=ERROR REPORT==== 29-Jun-2017::04:21:48 ===
Channel error on connection <0.14694.1> (127.0.0.1:52206 -> 127.0.0.1:5671,
vhost: '/', user: 'powervc_mq'), channel 1:
operation basic.publish caused a channel exception not_found: "no exchange
'q-agent-notifier-l2population-update_fanout' in vhost '/'"
Version :
This is happening in Openstack ocata level environment. Two out of three
attempts result in this error. One of them went through succesfully
later on.
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1701327
Title:
While updating fixed_ip attribute of neutron port, get rabbit error
Status in neutron:
New
Bug description:
While attempting to update fixed_ip attribute of neutron port, get this error:
2017-06-29 02:55:58.856 37283 ERROR oslo.messaging._drivers.impl_rabbit
[req-2ea397ae-d5fd-4860-aca6-e633bba0d84a
0688b01e6439ca32d698d20789d52169126fb41fb1a4ddafcebb97d854e836c9
2d374653dc914c2e877fb6900ef28ccd - - -] Failed to publish message to topic
'q-agent-notifier-l2population-update_fanout': Basic.publish: (404) NOT_FOUND -
no exchange 'q-agent-notifier-l2population-update_fanout' in vhost '/'
Stack trace from neutron server log :
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
[req-2ea397ae-d5fd-4860-aca6-e633bba0d84a
0688b01e6439ca32d698d20789d52169126fb41fb1a4ddafcebb97d854e836c9
2d374653dc914c2e877fb6900ef28ccd - - -] Mechanism driver 'l2population' failed
in update_port_postcommit
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers Traceback
(most recent call last):
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/managers.py", line 408,
in _call_on_drivers
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
getattr(driver.obj, method_name)(context)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py",
line 156, in update_port_postcommit
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self._fixed_ips_changed(context, orig, port, diff_ips)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py",
line 134, in _fixed_ips_changed
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.rpc_ctx, {'chg_ip': upd_fdb_entries})
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/rpc.py",
line 87, in update_fdb_entries
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
fdb_entries)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/l2pop/rpc.py",
line 49, in _notification_fanout
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
cctxt.cast(context, method, fdb_entries=fdb_entries)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 147, in
cast
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.transport._send(self.target, msg_ctxt, msg, retry=self.retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 97, in
_send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
timeout=timeout, retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line
458, in send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line
432, in _send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
conn.fanout_send(target.topic, msg, retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
1295, in fanout_send
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self._ensure_publishing(self._publish, exchange, msg, retry=retry)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
1170, in _ensure_publishing
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.ensure(method, retry=retry, error_callback=_error_callback)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
817, in ensure
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers ret,
channel = autoretry_method()
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/connection.py", line 436, in _ensured
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
fun(*args, **kwargs)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/connection.py", line 508, in __call__
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
fun(*args, channel=channels[0], **kwargs), channels[0]
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
793, in execute_method
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers method()
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line
1201, in _publish
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
compression=self.kombu_compression)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/messaging.py", line 172, in publish
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
routing_key, mandatory, immediate, exchange, declare)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/kombu/messaging.py", line 188, in _publish
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
mandatory=mandatory, immediate=immediate,
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/channel.py", line 2130, in
basic_publish_confirm
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
self.wait([(60, 80)])
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/abstract_channel.py", line 69, in wait
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
self.dispatch_method(method_sig, args, content)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/abstract_channel.py", line 87, in
dispatch_method
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers return
amqp_method(self, args)
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers File
"/usr/lib/python2.7/site-packages/amqp/channel.py", line 241, in _close
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
reply_code, reply_text, (class_id, method_id), ChannelError,
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers NotFound:
Basic.publish: (404) NOT_FOUND - no exchange
'q-agent-notifier-l2population-update_fanout' in vhost '/'
2017-06-29 02:55:58.858 37283 ERROR neutron.plugins.ml2.managers
2017-06-29 02:55:58.903 37283 ERROR neutron.plugins.ml2.plugin
[req-2ea397ae-d5fd-4860-aca6-e633bba0d84a
0688b01e6439ca32d698d20789d52169126fb41fb1a4ddafcebb97d854e836c9
2d374653dc914c2e877fb6900ef28ccd - - -]
mechanism_manager.update_port_postcommit failed for port
799abd6f-c1d7-4fd3-8a77-65f1b0bf9515
In rabbitmq log
=ERROR REPORT==== 29-Jun-2017::04:21:48 ===
Channel error on connection <0.14694.1> (127.0.0.1:52206 -> 127.0.0.1:5671,
vhost: '/', user: 'powervc_mq'), channel 1:
operation basic.publish caused a channel exception not_found: "no exchange
'q-agent-notifier-l2population-update_fanout' in vhost '/'"
Version :
This is happening in Openstack ocata level environment. Two out of
three attempts result in this error. One of them went through
succesfully later on.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1701327/+subscriptions
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