Public bug reported: Seen on: multinode devstack (1 controller/1 compute)
Steps to reproduce: 1. boot a vm, verify that it can be reached 2. reboot the vm with nova reboot 3. check that the vm can't be reached anymore (on different deployments reproducibility varied from 50% to 100%) The reason for connectivity loss is that ofport number corresponding to vm's tap interface doesn't match in_port number in ovs flows generated by the firewall. I suspect a race of some kind between tap interface plugging into br-int and the generation of ovs flows for a new vm. Port numbers will match again after issuing nova shelve/unshelve. no connectivity after reboot - http://paste.openstack.org/show/602726/ connectivity regained after shelve/unshelve - http://paste.openstack.org/show/602729/ ** Affects: neutron Importance: Undecided Assignee: Inessa Vasilevskaya (ivasilevskaya) Status: New ** Tags: ovs-fw ovs-lib ** Changed in: neutron Assignee: (unassigned) => Inessa Vasilevskaya (ivasilevskaya) -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1673027 Title: ovsfw: no vm connectivity after nova reboot Status in neutron: New Bug description: Seen on: multinode devstack (1 controller/1 compute) Steps to reproduce: 1. boot a vm, verify that it can be reached 2. reboot the vm with nova reboot 3. check that the vm can't be reached anymore (on different deployments reproducibility varied from 50% to 100%) The reason for connectivity loss is that ofport number corresponding to vm's tap interface doesn't match in_port number in ovs flows generated by the firewall. I suspect a race of some kind between tap interface plugging into br-int and the generation of ovs flows for a new vm. Port numbers will match again after issuing nova shelve/unshelve. no connectivity after reboot - http://paste.openstack.org/show/602726/ connectivity regained after shelve/unshelve - http://paste.openstack.org/show/602729/ To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1673027/+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