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Description of problem: I completly disabled IPv6 after installing packstack. And now I'm having this error flooding the audit.log and openvswitch-agent.log modules/ipv6.conf ------------------ options ipv6 disable=1 install ipv6 /bin/true blacklist ipv6 alias ipv6 off openvswitch-agent.log --------------------- 2014-07-31 11:45:16.039 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent 2014-07-31 11:45:16.040 1891 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Agent out of sync with plugin! 2014-07-31 11:45:16.041 1891 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Agent tunnel out of sync with plugin! 2014-07-31 11:45:17.933 1891 INFO neutron.agent.securitygroups_rpc [-] Preparing filters for devices set([u'085562f6-de05-4294-984c-bdd5b8448b88', u'aca468f0-7518-4ec0-bcba-dc819d961248', u'c8338884-adc6-477f-bbe6-1f459a401083']) 2014-07-31 11:45:18.445 1891 ERROR neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Error in agent event loop 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Traceback (most recent call last): 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 1081, in rpc_loop 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent sync = self.process_network_ports(port_info) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 1011, in process_network_ports 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent resync_a = self.treat_devices_added(port_info['added']) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 912, in treat_devices_added 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent self.sg_agent.prepare_devices_filter(devices) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/agent/securitygroups_rpc.py", line 123, in prepare_devices_filter 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent self.firewall.prepare_port_filter(device) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib64/python2.6/contextlib.py", line 23, in __exit__ 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent self.gen.next() 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/agent/firewall.py", line 107, in defer_apply 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent self.filter_defer_apply_off() 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/agent/linux/iptables_firewall.py", line 353, in filter_defer_apply_off 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent self.iptables.defer_apply_off() 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/agent/linux/iptables_manager.py", line 346, in defer_apply_off 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent self._apply() 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/openstack/common/lockutils.py", line 233, in inner 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent retval = f(*args, **kwargs) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/agent/linux/iptables_manager.py", line 382, in _apply 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent root_helper=self.root_helper) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent File "/usr/lib/python2.6/site-packages/neutron/agent/linux/utils.py", line 75, in execute 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent raise RuntimeError(m) 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent RuntimeError: 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip6tables-restore', '-c'] 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Exit code: 2 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Stdout: '' 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Stderr: "ip6tables-restore v1.4.7: ip6tables-restore: unable to initialize table 'filter'\n\nError occurred at line: 2\nTry `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.\n" 2014-07-31 11:45:18.445 1891 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent 2014-07-31 11:45:18.446 1891 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Agent out of sync with plugin! 2014-07-31 11:45:18.446 1891 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Agent tunnel out of sync with plugin! This is how the file grows in 10 seconds # > openvswitch-agent.log; ll openvswitch-agent.log ; sleep 10; ll openvswitch-agent.log -rw-r--r--. 1 neutron neutron 0 Jul 31 11:42 openvswitch-agent.log -rw-r--r--. 1 neutron neutron 15482 Jul 31 11:42 openvswitch-agent.log Version-Release number of selected component (if applicable): openstack-nova-conductor-2013.2.2-2.el6ost.noarch openstack-nova-cert-2013.2.2-2.el6ost.noarch openstack-neutron-openvswitch-2013.2.2-1.el6ost.noarch redhat-access-plugin-openstack-4.0.0-0.el6ost.noarch openstack-keystone-2013.2.2-1.el6ost.noarch openstack-cinder-2013.2.2-1.el6ost.noarch openstack-utils-2013.2-3.el6ost.noarch openstack-nova-api-2013.2.2-2.el6ost.noarch openstack-nova-compute-2013.2.2-2.el6ost.noarch openstack-nova-scheduler-2013.2.2-2.el6ost.noarch openstack-dashboard-2013.2.2-1.el6ost.noarch openstack-ceilometer-central-2013.2.2-1.el6ost.noarch openstack-ceilometer-collector-2013.2.2-1.el6ost.noarch openstack-ceilometer-api-2013.2.2-1.el6ost.noarch openstack-ceilometer-compute-2013.2.2-1.el6ost.noarch openstack-nova-novncproxy-2013.2.2-2.el6ost.noarch openstack-neutron-2013.2.2-1.el6ost.noarch openstack-packstack-2013.2.1-0.25.dev987.el6ost.noarch python-django-openstack-auth-1.1.2-2.el6ost.noarch openstack-dashboard-theme-2013.2.2-1.el6ost.noarch openstack-selinux-0.1.3-2.el6ost.noarch openstack-ceilometer-alarm-2013.2.2-1.el6ost.noarch sos-plugins-openstack-2013.2-5.el6ost.noarch openstack-glance-2013.2.2-2.el6ost.noarch openstack-nova-common-2013.2.2-2.el6ost.noarch openstack-ceilometer-common-2013.2.2-1.el6ost.noarch openstack-nova-console-2013.2.2-2.el6ost.noarch commenting the entries on modules/ipv6.conf and executing modprobe ipv6 fixes the issue. I didn't found any way to disable the ipv6 behavior in neutron by any conf option This is the cpu (vm 1 core) usage during the issue: Tasks: 142 total, 2 running, 140 sleeping, 0 stopped, 0 zombie Cpu(s): 78.7%us, 20.7%sy, 0.0%ni, 0.3%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st This is cpu usage after modprobe ipv6 Tasks: 142 total, 1 running, 141 sleeping, 0 stopped, 0 zombie Cpu(s): 4.1%us, 1.4%sy, 0.0%ni, 85.0%id, 9.5%wa, 0.0%hi, 0.0%si, 0.0%st
*** Bug 1002569 has been marked as a duplicate of this bug. ***
Verified on Icehouse with: Version-Release number of selected component: --------------------------------------------- Red Hat Enterprise Linux Server release 7.0 (Maipo) puddle: 2014-10-10.4 openstack-neutron-ml2-2014.1.3-4.el7ost.noarch Reproduce Steps: ---------------- 1. Edit file /etc/sysctl.conf, enter the following command: 1.1 [root@devops ~]# vim /etc/sysctl.conf 2. Adding the below lines into that file: 2.1 net.ipv6.conf.all.disable_ipv6 = 1 2.2 net.ipv6.conf.default.disable_ipv6 = 1 2.3 net.ipv6.conf.lo.disable_ipv6 = 1 3. Save and close that file, then restart sysctl with the following command: 3.1 [root@devops ~]# sysctl -p 4. check “disable_ipv6″ file to check if IPv6 is disabled,enter: 4.1 [root@devops ~]# cat /proc/sys/net/ipv6/conf/all/disable_ipv6 4.2 1 Results: -------- No errors in audit.log nor openvswitch-agent.log
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/RHSA-2014-1786.html