Bug 1382416

Summary: agent traces about bridge-nf-call sysctl values missing in RHEL 7.3
Product: Red Hat OpenStack Reporter: Ihar Hrachyshka <ihrachys>
Component: openstack-neutronAssignee: Ihar Hrachyshka <ihrachys>
Status: CLOSED ERRATA QA Contact: Alexander Stafeyev <astafeye>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.0 (Juno)CC: amuller, chrisw, jschluet, nyechiel, srevivo, tfreger
Target Milestone: asyncKeywords: ZStream
Target Release: 6.0 (Juno)   
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: openstack-neutron-2014.2.3-40.el7ost Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1382412 Environment:
Last Closed: 2017-01-19 13:29:05 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1382412, 1382417    
Bug Blocks: 1382413, 1382414    

Description Ihar Hrachyshka 2016-10-06 15:37:30 UTC 
+++ This bug was initially created as a clone of Bug #1382412 +++

2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent Traceback (most recent call last):
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/plugins/ml2/drivers/agent/_common_agent.py", line 450, in daemon_loop
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent sync = self.process_network_devices(device_info)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/usr/local/lib/python2.7/dist-packages/osprofiler/profiler.py", line 154, in wrapper
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent return f(*args, **kwargs)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/plugins/ml2/drivers/agent/_common_agent.py", line 200, in process_network_devices
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent device_info.get('updated'))
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/securitygroups_rpc.py", line 265, in setup_port_filters
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent self.prepare_devices_filter(new_devices)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/securitygroups_rpc.py", line 130, in decorated_function
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent *args, **kwargs)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/securitygroups_rpc.py", line 138, in prepare_devices_filter
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent self._apply_port_filter(device_ids)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/securitygroups_rpc.py", line 163, in _apply_port_filter
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent self.firewall.prepare_port_filter(device)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/linux/iptables_firewall.py", line 170, in prepare_port_filter
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent self._enable_netfilter_for_bridges()
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/linux/iptables_firewall.py", line 114, in _enable_netfilter_for_bridges
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent run_as_root=True)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent File "/opt/stack/new/neutron/neutron/agent/linux/utils.py", line 138, in execute
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent raise RuntimeError(msg)
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent RuntimeError: Exit code: 255; Stdin: ; Stdout: ; Stderr: sysctl: cannot stat /proc/sys/net/bridge/bridge-nf-call-arptables: No such file or directory
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent
2016-09-13 07:37:33.437 13401 ERROR neutron.plugins.ml2.drivers.agent._common_agent

This should be solved by loading br_netfilter kernel module in RHEL 7.3 before starting the agent.

--- Additional comment from Ihar Hrachyshka on 2016-10-06 11:32:50 EDT ---

Note: this is solved in OSP10 by the virtue of the patch: https://review.rdoproject.org/r/3114 that should arrive on next delorean sync into OSP.
Comment 2 Alexander Stafeyev 2016-12-25 14:50:05 UTC 
[root@controller ~]# rpm -qa | grep neutron
openstack-neutron-common-2014.2.3-41.el7ost.noarch
openstack-neutron-2014.2.3-41.el7ost.noarch



[root@controller ~]# lsmod | grep br_net
br_netfilter           22248  0 


Booted VM. 

After reboot 
[root@controller ~(keystone_admin)]# grep "neutron.plugins.ml2.drivers.ag" /var/log/neutron/*
[root@controller ~(keystone_admin)]# 


No errors in logs . 

Setup - AIO packstack
Comment 4 errata-xmlrpc 2017-01-19 13:29:05 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2017-0154.html