Cool! So Ansis, can you confirm that with the new libvirt changes, migration of the OVS DB state is handled by libvirt itself?
On Jun 26, 2012, at 2:31 PM, Dan Wendlandt wrote: > Looping in Ansis, as he said that with the new OVS + libvirt integration, he > believes that libvirt will automatically transfer the iface-id with a live > migration. My testing had been done with the old OVS + libvirt model, where > we used type=ethernet, in which case iface-id configuration was done entirely > outside of libvirt. > > Dan > > On Tue, Jun 26, 2012 at 8:01 PM, Dan Wendlandt <d...@nicira.com> wrote: > > > On Tue, Jun 26, 2012 at 7:40 PM, Kyle Mestery (kmestery) <kmest...@cisco.com> > wrote: > > On Jun 26, 2012, at 1:37 PM, Dan Wendlandt wrote: > > > > > > > On Tue, Jun 26, 2012 at 6:28 PM, Kyle Mestery (kmestery) > > <kmest...@cisco.com> wrote: > > Hi folks: > > > > I think this is the correct forum for this question, but please let me know. > > > > When Nova migrates a virtual machine from one host to another, who > > transfers the data for the port stored in the OVS DB? > > > > Is the data you're talking about the "iface-id" information created by the > > virt driver when the VM is first booted? If so, yes, when a VM is > > migrated, the virt driver on the new compute host will again set the > > "iface-id" and related OVSDB values, while the virt driver on the old host > > cleans them up. > > > > Dan > > > This was exactly it, thanks for confirming Dan! I wasn't sure if we were > taking advantage of hooks into libvirt for example to handle this migration > or not. > > Its been a while since I've dealt with that code, so things are pretty fuzzy > and I could be wrong. Let me know what you find out :) > > Dan > > > > Kyle > > > > > I assume this must be handled by the virt driver. Is this the case? Or is > > this not supported currently? > > > > Thanks, > > Kyle > > -- > > Mailing list: https://launchpad.net/~netstack > > Post to : netstack@lists.launchpad.net > > Unsubscribe : https://launchpad.net/~netstack > > More help : https://help.launchpad.net/ListHelp > > > > > > > > -- > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > Dan Wendlandt > > Nicira, Inc: www.nicira.com > > twitter: danwendlandt > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > > > > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Dan Wendlandt > Nicira, Inc: www.nicira.com > twitter: danwendlandt > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Dan Wendlandt > Nicira, Inc: www.nicira.com > twitter: danwendlandt > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > -- Mailing list: https://launchpad.net/~netstack Post to : netstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~netstack More help : https://help.launchpad.net/ListHelp
