Hi I logged the following bug https://bugs.launchpad.net/nova/+bug/1634269
I sent out review below please let me know if I am on right track https://review.openstack.org/#/c/387687/ Ajay From: Kevin Benton <ke...@benton.pub<mailto:ke...@benton.pub>> Reply-To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>> Date: Friday, October 14, 2016 at 1:23 AM To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>> Subject: Re: [openstack-dev] [openstack][nova] Port unbound from active VM I suggest filing a bug against nova for this. On Thu, Oct 13, 2016 at 9:44 AM, Ajay Kalambur (akalambu) <akala...@cisco.com<mailto:akala...@cisco.com>> wrote: Any comments/input on this? Ajay From: Ajay Kalambur <akala...@cisco.com<mailto:akala...@cisco.com>> Date: Monday, October 10, 2016 at 6:31 PM To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>> Subject: [openstack][nova] Port unbound from active VM Hi There seems to be a corner case bug in nova code. Steps to reproduce it are 1. Create a neutron port 2. Create a VM and launch instance with this port 3. Shutdown nova compute and network agent on compute node 4. Unbind port from VM and delete the VM (offline delete) 5. Now create a VM with same port but on a different compute node 6. Bring up nova compute on old node It basically runs the reap for deleted instances and cleanes up VM from libvirt. In the process it unbinds the pre-existing ports and ends up unbinding the port from an active VM on a different compute node Reason nova simply sends a blind port-update with binding_host: “” even if that port is bound to a different instance So following fix seemed to help any suggestions on a better fix In nova/network/neutronv2/api.py. So basically when neutron sees no ports for this instance don’t attempt an unbind In this case data = neutron.list_ports(**search_opts) Call in deallocate_for_instance returns empty ports # Reset device_id and device_owner for the ports that are skipped if data.get('ports', []): self._unbind_ports(context, ports_to_skip, neutron) else: LOG.debug("Neutron sees a different view of this port hence skipping unbind”) Ajay __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe<http://openstack-dev-requ...@lists.openstack.org?subject:unsubscribe> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
__________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
