On 08/07/2012 08:23 PM, Blair Bethwaite wrote: > Hi Jay, > > On 8 August 2012 06:13, Jay Pipes <jaypi...@gmail.com> wrote: >> Why would you find this surprising? I'm just curious... > > The live migration algorithm detailed here: > http://www.linux-kvm.org/page/Migration, seems to me to indicate that > only a brief pause should be expected. Indeed, the summary says, > "Almost unnoticeable guest down time". > > But to the contrary. I tested live-migrate (without block migrate) > last night using a guest with 8GB RAM (almost fully committed) and > lost any access/contact with the guest for over 4 minutes - it was > paused for the duration. Not something I'd want to do to a user's > web-server on a regular basis...
Sorry, from your original post, I didn't think you were referring to live migration, but rather just server migration. You had written "Compared to regular (non-block) live migrate", but I read that as "Compared to regular migrate" and thought you were referring to the server migration behaviour that Nova supports... sorry about that! Best, -jay _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
