On Wed, May 2, 2012 at 7:42 PM, Cole Robinson <crobi...@redhat.com> wrote:
> On 05/02/2012 04:52 AM, Coding Geek wrote: > > > > > > On Mon, Apr 30, 2012 at 9:07 PM, Cole Robinson <crobi...@redhat.com > > <mailto:crobi...@redhat.com>> wrote: > > > > On 04/25/2012 07:06 AM, Coding Geek wrote: > > > > > > Hello > > > I am working with 3 host machines each running xen with shared NFS > > storage. I > > > am working on automatic load balancing if one host is over > utilized and > > > another is under utilized by measuring the utilization from > xentop. I am > > > facing a problem after migration of VM. I am setting the flags ( > 1| 8| > > 16) in > > > order to do live migration, persist VM on destination, undefine > host from > > > source. After migration if I shut off the migrated VM on > destination host it > > > does not persist. I am using the migrateToURI() API for migration. > > > > > > Please help how to make VM persist on destination. > > > > > > > There's a flag you can pass to the migration API, > VIR_MIGRATE_PERSIST_DEST. > > > > - Cole > > > > > > Actually I am already using this flag VIR_MIGRATE_PERSIST_DEST but still > VM is > > not persisting on Destination. Do I need to change something while > creating > > the VM? > > > > That flag might not be implemented to xen. But in that case it should > explicitly reject the flag. Please file a bug. > > But if you need a working solution, you can just do a lookupByName on the > remote host after migration, then define that guest to make it persistent. > > - Cole > > Ok. Before trying your solution one thing i want to ask. After migration I can do lookupByName which returns a domain pointer and then I can get the XML description of domain using getXMLDesc and then "can I still define the domain using defineXML because it returns a newly created domain's pointer?" and domain is already running in transient mode. I do not want to shut off the domain after migration. -- Tasvinder
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