Open Stack

Hi Abel,

I just tried and it did the same thing. Load went up to 800 and the VM is
unreachable.

Any ideas?

Thanks,

Steve

On Fri, Sep 12, 2014 at 12:59 PM, Abel Lopez <alopgeek at gmail.com> wrote:

> Does it work if you first detach the volume and then migrate?
>
>
> On Friday, September 12, 2014, Stephen Cousins <steve.cousins at maine.edu>
> 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
>>
>>


-- 
________________________________________________________________
 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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