Does it work if you first detach the volume and then migrate? On Friday, September 12, 2014, Stephen Cousins <[email protected]> wrote:
> I am fairly new to Openstack having just inherited a Grizzly system with > NFS storage. "nova live-migration" is working unless the VM has an attached > volume. When it doesn't work, the VM does move but it is not possible to > connect to it and the CPU load on that VM goes up to the number of cores > assigned to it. That is, for a VM with 8 cores in it, the load for that > qemu-system-x86_64 process goes up to about 800%. Is this a known problem > with Grizzly? > > Here is a description of our system: > > three machines set up with HA for Quantum (with Open vSwitch), Cinder, > RabbitMQ, and Nova. These nodes are all compute nodes too. We also have > another machine that is just compute. > > Cinder and Glance storage is all NFS connected to each machine with the > same mount points. > > The command I am using to do the migration is: > > nova live-migration $UUID compute3 > > > In some cases the migration has worked when a volume has been attached. > Most of the time however, it does not work. > > Thanks, > > Steve > > -- > ________________________________________________________________ > Steve Cousins Supercomputer Engineer/Administrator > Advanced Computing Group University of Maine System > 244 Neville Hall (UMS Data Center) (207) 561-3574 > Orono ME 04469 steve.cousins at maine.edu > >
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