Open Stack

 Hello,

 I am having an Ocata installation and on my Compute Node the 
 "linuxbridge-agent.log" file is constantly filling out with messages 
 like this:

 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent Traceback (most recent 
 call last):
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", 
 line 453, in daemon_loop
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     sync = 
 self.process_network_devices(device_info)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 153, in 
 wrapper
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     return f(*args, 
 **kwargs)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", 
 line 213, in process_network_devices
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     resync_b = 
 self.treat_devices_removed(device_info['removed'])
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 153, in 
 wrapper
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     return f(*args, 
 **kwargs)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", 
 line 331, in treat_devices_removed
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     
 self.sg_agent.remove_devices_filter(devices)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/securitygroups_rpc.py", 
 line 238, in remove_devices_filter
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     
 self.firewall.remove_port_filter(device)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/linux/iptables_firewall.py", 
 line 222, in remove_port_filter
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     
 self._remove_conntrack_entries_from_port_deleted(port)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/linux/iptables_firewall.py", 
 line 194, in _remove_conntrack_entries_from_port_deleted
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     [device_info], 
 ethertype, set())
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/linux/ip_conntrack.py", 
 line 121, in delete_conntrack_state_by_remote_ips
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     
 self._delete_conntrack_state(device_info_list, rule)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/linux/ip_conntrack.py", 
 line 103, in _delete_conntrack_state
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     extra_ok_codes=[1])
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/linux/utils.py", line 
 128, in execute
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     
 execute_rootwrap_daemon(cmd, process_input, addl_env))
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/neutron/agent/linux/utils.py", line 
 115, in execute_rootwrap_daemon
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     return 
 client.execute(cmd, process_input)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib/python2.7/site-packages/oslo_rootwrap/client.py", line 128, in 
 execute
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     res = 
 proxy.run_one_command(cmd, stdin)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File "<string>", line 
 2, in run_one_command
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent   File 
 "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in 
 _callmethod
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent     raise 
 convert_to_error(kind, result)
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent RemoteError:
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent 
 ---------------------------------------------------------------------------
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent Unserializable message: 
 ('#ERROR', ValueError('I/O operation on closed file',))
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent 
 ---------------------------------------------------------------------------
 2017-04-07 13:37:47.709 1397 ERROR 
 neutron.plugins.ml2.drivers.agent._common_agent
 2017-04-07 13:37:47.710 1397 INFO 
 neutron.plugins.ml2.drivers.agent._common_agent 
 [req-93157f5e-9f2d-4547-9002-c473211df719 - - - - -] Linux bridge agent 
 Agent out of sync with plugin!



 Any idea what might be the problem???


 The full log of a total circle of messages can be found here: 
 https://pastebin.com/6Yzn0FuY



 Looking forward for an answer!


 Best regards,


 G.