[Expired for neutron because there has been no activity for 60 days.]
** Changed in: neutron
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1480042
Title:
L3 agent notify error after HA router deletion
Status in neutron:
Expired
Bug description:
$ uname -a
Linux compute02 3.10.0-229.el7.x86_64 #1 SMP Fri Mar 6 11:36:42 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
$ neutron-server --version
neutron-server 2015.1.0
Reproduce the bug:
1. Two network node running l3, dhcp, metadata
2. ml2 ovs + gre
3. enable neutron l3 ha
4. create ha router
5. set router gateway
6. add router interface to a subnet
7. create an instance
8. set a floating IP to the instance
9. unset and release the floating IP
10. unset the router gateway and the interface to a subnet
11. delete the router
Assert that the master vRouter is running in host A,
the second network node host B which is the stand-by vrrp qrouter-ns, it will
get errors:
l3-agent.log
2015-07-31 12:10:01.886 7017 ERROR neutron.agent.linux.utils [-]
Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip',
'netns', 'exec', 'qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1',
'iptables-save', '-c']
Exit code: 1
Stdin:
Stdout:
Stderr: Cannot open network namespace
"qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1": No such file or directory
2015-07-31 12:10:01.887 7017 DEBUG oslo_concurrency.lockutils [-] Releasing
file lock
"/var/lib/neutron/lock/neutron-iptables-qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1"
after holding it for 0.074s release
/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:227
2015-07-31 12:10:01.887 7017 DEBUG oslo_concurrency.lockutils [-] Releasing
semaphore "iptables-qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1" lock
/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:404
2015-07-31 12:10:01.887 7017 DEBUG neutron.agent.linux.iptables_manager [-]
Semaphore / lock released
"iptables-qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1" _apply
/usr/lib/python2.7/site-packages/neutron/agent/linux/iptables_manager.py:419
2015-07-31 12:10:01.888 7017 ERROR neutron.callbacks.manager [-] Error during
notification for neutron.agent.metadata.driver.before_router_removed router,
before_delete
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager Traceback (most
recent call last):
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager File
"/usr/lib/python2.7/site-packages/neutron/callbacks/manager.py", line 143, in
_notify_loop
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager
callback(resource, event, trigger, **kwargs)
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager File
"/usr/lib/python2.7/site-packages/neutron/agent/metadata/driver.py", line 171,
in before_router_removed
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager
router.iptables_manager.apply()
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager File
"/usr/lib/python2.7/site-packages/neutron/agent/linux/iptables_manager.py",
line 407, in apply
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager self._apply()
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager File
"/usr/lib/python2.7/site-packages/neutron/agent/linux/iptables_manager.py",
line 417, in _apply
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager return
self._apply_synchronized()
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager File
"/usr/lib/python2.7/site-packages/neutron/agent/linux/iptables_manager.py",
line 437, in _apply_synchronized
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager all_tables =
self.execute(args, run_as_root=True)
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager File
"/usr/lib/python2.7/site-packages/neutron/agent/linux/utils.py", line 137, in
execute
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager raise
RuntimeError(m)
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager RuntimeError:
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager Command:
['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns',
'exec', 'qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1', 'iptables-save', '-c']
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager Exit code: 1
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager Stdin:
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager Stdout:
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager Stderr: Cannot
open network namespace "qrouter-0678efdd-e6e7-4f4e-be5c-ac975929d2c1": No such
file or directory
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager
2015-07-31 12:10:01.888 7017 TRACE neutron.callbacks.manager
2015-07-31 12:10:01.889 7017 INFO neutron.callbacks.manager [-] Notify
callbacks for router, abort_delete
This message:
"Error during notification for
neutron.agent.metadata.driver.before_router_removed router, before_delete"
came from the code:
class MetadataDriver(object):
def __init__(self, l3_agent):
self.metadata_port = l3_agent.conf.metadata_port
self.metadata_access_mark = l3_agent.conf.metadata_access_mark
registry.subscribe(
after_router_added, resources.ROUTER, events.AFTER_CREATE)
registry.subscribe(
before_router_removed, resources.ROUTER, events.BEFORE_DELETE)
The router resources was deleted, but it seems that the Metadata was
not notified.
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