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Hi Rony,

Based on this line:
 > BridgeDoesNotExist: Bridge br-int does not exist

...it looks as if your SDN-provider-of-choice (OVS ?) may need some 
attention.  As a wild stab in the dark, is the bridge defined in 
bridge_mappings, for the default bridge, present, and available to be 
patched (hypothetically via OVS, or another provider) to br-int ?

Cheers,
Michael.


On 22/05/19 2:53 AM, Md. Farhad Hasan Khan wrote:
> Hi,
> 
> I can create router from horizon. But network namespaces not created. I 
> check with # ip netns list command. Not found router ID, but showing in 
> horizon.
> 
> Here is some log I get from neutron:
> 
> #cat /var/log/neutron/l3-agent.log
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent [-] Error 
> while deleting router cad85ce0-6624-42ff-b42b-09480aea2613: OSError: 
> [Errno 2] No such file or directory: 
> '/var/lib/neutron/ha_confs/cad85ce0-6624-42ff-b42b-09480aea2613'
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent Traceback 
> (most recent call last):
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 372, 
> in _router_added
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     ri.delete()
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/ha_router.py", line 
> 452, in delete
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self.disable_keepalived()
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/ha_router.py", line 
> 178, in disable_keepalived
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> shutil.rmtree(conf_dir)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib64/python2.7/shutil.py", line 239, in rmtree
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> onerror(os.listdir, path, sys.exc_info())
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib64/python2.7/shutil.py", line 237, in rmtree
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     names = 
> os.listdir(path)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent OSError: 
> [Errno 2] No such file or directory: 
> '/var/lib/neutron/ha_confs/cad85ce0-6624-42ff-b42b-09480aea2613'
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent [-] Failed to 
> process compatible router: cad85ce0-6624-42ff-b42b-09480aea2613: 
> BridgeDoesNotExist: Bridge br-int does not exist.
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent Traceback 
> (most recent call last):
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 562, 
> in _process_router_update
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self._process_router_if_compatible(router)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 481, 
> in _process_router_if_compatible
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self._process_added_router(router)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 486, 
> in _process_added_router
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self._router_added(router['id'], router)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 375, 
> in _router_added
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     router_id)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in 
> __exit__
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self.force_reraise()
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in 
> force_reraise
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> six.reraise(self.type_, self.value, self.tb)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 364, 
> in _router_added
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> ri.initialize(self.process_monitor)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/ha_router.py", line 
> 128, in initialize
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self.ha_network_added()
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/l3/ha_router.py", line 
> 198, in ha_network_added
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> mtu=self.ha_port.get('mtu'))
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/linux/interface.py", 
> line 263, in plug
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     bridge, 
> namespace, prefix, mtu)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/linux/interface.py", 
> line 346, in plug_new
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     
> self.check_bridge_exists(bridge)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent   File 
> "/usr/lib/python2.7/site-packages/neutron/agent/linux/interface.py", 
> line 221, in check_bridge_exists
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent     raise 
> exceptions.BridgeDoesNotExist(bridge=bridge)
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent 
> BridgeDoesNotExist: Bridge br-int does not exist.
> 
> 2019-05-21 17:37:12.640 52248 ERROR neutron.agent.l3.agent
> 
> 2019-05-21 17:37:13.024 52248 WARNING neutron.agent.l3.agent [-] Info 
> for router cad85ce0-6624-42ff-b42b-09480aea2613 was not found. 
> Performing router cleanup
> 
> 2019-05-21 17:37:14.358 52248 WARNING neutron.agent.l3.agent [-] Info 
> for router cad85ce0-6624-42ff-b42b-09480aea2613 was not found. 
> Performing router cleanup
> 
> Thanks & B’Rgds,
> 
> Rony
> 

-- 
Michael Richardson
Catalyst Cloud || Catalyst IT Limited
150-154 Willis Street, PO Box 11-053 Wellington New Zealand
http://catalyst.net.nz
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