Open Stack

HI,
I am using cinder volumes.
Ignazio

Il giorno gio 4 ago 2022 alle ore 16:56 Gorka Eguileor <geguileo at redhat.com>
ha scritto:

> On 03/08, Ignazio Cassano wrote:
> > Hello All,
> > I am looking for a solution to speed up live migration.
> > Instances where ram is used heavily like java application servers, live
> > migration take a long time (more than 20 minutes for 8GB ram instance)
> and
> > converge mode is already set to True in nova.conf.
>
> Hi,
>
> Probably doesn't affect your case, but I assume you are using ephemeral
> nova boot volumes.
>
> Have you tried using only Cinder volumes on the VM?
>
> Cheers,
> Gorka.
>
>
> > I also tried with post_copy but it does not change.
> > After the first live migration (very solow) if I try to migrate again it
> is
> > very fast.
> > I presume the first migration is slow because memory fragmentation when
> an
> > instance is running on the same compute node for a long time.
> > I am looking for a solution considering the on my computing node I can
> have
> > a little ram overcommit. Any case I am increasing the number of compute
> > nodes to reduce it.
> > Thanks
> > Ignazio
>
>
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