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[Openstack] Error Neutron: RTNETLINK answers: File exists


Good afternoon,

For no apparent reason my Neutron stopped working.

I deleted the networks, subnets and routers, created everything again.

But it does not work. The logs are:


2018-07-26 11:29:16.101 3272 INFO 
neutron.plugins.ml2.drivers.agent._common_agent 
[req-9ba0ca9f-aeaf-44b2-ba24-c08556aae0ac - - - - -] Linux bridge agent 
Agent out of sync with plugin!
2018-07-26 11:29:16.101 3272 INFO neutron.agent.securitygroups_rpc 
[req-9ba0ca9f-aeaf-44b2-ba24-c08556aae0ac - - - - -] Preparing filters 
for devices set(['tap69feb7be-2b', 'tap0efd5228-b0', 'tap83a57ce5-a8', 
'tapd50d137f-f6'])
2018-07-26 11:29:18.218 3272 INFO 
neutron.plugins.ml2.drivers.agent._common_agent 
[req-9ba0ca9f-aeaf-44b2-ba24-c08556aae0ac - - - - -] Port tap69feb7be-2b 
updated. Details: {u'profile': {}, u'network_qos_policy_id': None, 
u'qos_policy_id': None, u'allowed_address_pairs': [], u'admin_state_up': 
True, u'network_id': u'0f293447-ad01-465e-a034-fdaa136a4488', 
u'segmentation_id': None, u'device_owner': u'network:router_gateway', 
u'physical_network': u'provider', u'mac_address': u'fa:16:3e:a3:be:5c', 
u'device': u'tap69feb7be-2b', u'port_security_enabled': False, 
u'port_id': u'69feb7be-2b9c-4604-a078-32c984d7075a', u'fixed_ips': 
[{u'subnet_id': u'5ef3df97-d88a-4c60-969c-5a862f04c1e0', u'ip_address': 
u'192.168.0.14'}], u'network_type': u'flat'}
2018-07-26 11:29:18.871 3272 INFO 
neutron.plugins.ml2.drivers.linuxbridge.agent.arp_protect 
[req-9ba0ca9f-aeaf-44b2-ba24-c08556aae0ac - - - - -] Skipping ARP 
spoofing rules for port 'tap69feb7be-2b' because it has port security 
disabled
2018-07-26 11:29:20.208 3272 ERROR neutron.agent.linux.utils 
[req-9ba0ca9f-aeaf-44b2-ba24-c08556aae0ac - - - - -] Exit code: 2; 
Stdin: ; Stdout: ; Stderr: RTNETLINK answers: File exists

2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent 
[req-9ba0ca9f-aeaf-44b2-ba24-c08556aae0ac - - - - -] Error in agent 
loop. Devices info: {'current': set(['tap69feb7be-2b', 'tap0efd5228-b0', 
'tap83a57ce5-a8', 'tapd50d137f-f6']), 'timestamps': {'tap0efd5228-b0': 
9, 'tap69feb7be-2b': 13, 'tap83a57ce5-a8': 10, 'tapd50d137f-f6': 8}, 
'removed': set([]), 'added': set(['tap69feb7be-2b', 'tap0efd5228-b0', 
'tap83a57ce5-a8', 'tapd50d137f-f6']), 'updated': set([])}
2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent Traceback (most recent 
call last):
2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent   File 
"/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", 
line 453, in daemon_loop
2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent     sync = 
self.process_network_devices(device_info)
2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent   File 
"/usr/lib/python2.7/dist-packages/osprofiler/profiler.py", line 153, in 
wrapper
2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent     return f(*args, 
**kwargs)
2018-07-26 11:29:20.219 3272 ERROR 
neutron.plugins.ml2.drivers.agent._common_agent   File 
"/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", 
line 210, in process_network_devices

Has anyone had similar experience?

-- 
Marcio Prado
Analista de TI - Infraestrutura e Redes
Fone: (35) 9.9821-3561
www.marcioprado.eti.br




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