Public bug reported: It would be useful to have the option to specify inactivity_probe and max_backoff for OVS bridge controllers in neutron config.
OVS documentation says (https://github.com/openvswitch/ovs/blob/master/ovn/TODO.rst): The default 5 seconds inactivity_probe value is not sufficient and ovsdb-server drops the client IDL connections for openstack deployments when the neutron server is heavily loaded. This indeed can happen under the heavy load in neutron-ovs-agent. This was discussed in http://eavesdrop.openstack.org/irclogs/%23openstack- neutron/%23openstack-neutron.2017-01-27.log.html#t2017-01-27T02:46:22 , and the solution was to increase inactivity_probe. Alternative is to set this settings manually after each neutron-ovs-agent restart: ovs-vsctl set Controller br-tun inactivity_probe=30000 ovs-vsctl set Controller br-int inactivity_probe=30000 ovs-vsctl set Controller br-ex inactivity_probe=30000 ovs-vsctl set Controller br-tun max_backoff=5000 ovs-vsctl set Controller br-int max_backoff=5000 ovs-vsctl set Controller br-ex max_backoff=5000 ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1817022 Title: RFE: set inactivity_probe and max_backoff for OVS bridge controller Status in neutron: New Bug description: It would be useful to have the option to specify inactivity_probe and max_backoff for OVS bridge controllers in neutron config. OVS documentation says (https://github.com/openvswitch/ovs/blob/master/ovn/TODO.rst): The default 5 seconds inactivity_probe value is not sufficient and ovsdb-server drops the client IDL connections for openstack deployments when the neutron server is heavily loaded. This indeed can happen under the heavy load in neutron-ovs-agent. This was discussed in http://eavesdrop.openstack.org/irclogs/%23openstack- neutron/%23openstack-neutron.2017-01-27.log.html#t2017-01-27T02:46:22 , and the solution was to increase inactivity_probe. Alternative is to set this settings manually after each neutron-ovs-agent restart: ovs-vsctl set Controller br-tun inactivity_probe=30000 ovs-vsctl set Controller br-int inactivity_probe=30000 ovs-vsctl set Controller br-ex inactivity_probe=30000 ovs-vsctl set Controller br-tun max_backoff=5000 ovs-vsctl set Controller br-int max_backoff=5000 ovs-vsctl set Controller br-ex max_backoff=5000 To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1817022/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp