[rabbitmq-discuss] RabbitMQ on VM.

Fri Feb 26 22:39:29 GMT 2010

Tobey,

Thanks for share this informations, unfortunately I'm using Hyper-v 6.1
running Linux, I take a look about Hyper-v paravirtualization kernel for
Linux and drivers for hypervisor and it is a very big concern.

Thanks for paper, I will try to do some workaround for this environment and
report the result.

Regards.

On Fri, Feb 26, 2010 at 12:03 AM, Al Tobey <tobert at gmail.com> wrote:

> On Thu, Feb 25, 2010 at 6:08 PM, Gustavo Aquino
> <aquino.gustavo at gmail.com> wrote:
> > Hi,
> > Anybody here are using Rabbit +Erlang on VM with more than 2 CPUs with 2
> > cores ?
>
> I'm running a clustered instance on two Linux VM's with 1G RAM and 2
> CPU's on top of Linux/KVM hypervisors (each instance is on a different
> physical VM server).    It works fine and has done so for a long time.
>
> > Erlang doen't work in this environment for me,if I remove one CPU all
> works
> > fine, but putting other it's crash with the MONOTONIC CLOCK problem.
>
> It's impossible to say what's going on without knowing what hypervisor
> and guest you're using.  If it's KVM/Linux, you may try enabling the
> paravirtual clock options in the guest kernel.     There are a
> multitude of workarounds for clock problems in VM's and which one to
> use depends entirely on your guest/hypervisor combination.
>
> VMWare has a nice paper on the topic.
> http://www.vmware.com/pdf/vmware_timekeeping.pdf
>
> -Al Tobey
>
> > Regards.
> > _______________________________________________
> > rabbitmq-discuss mailing list
> > rabbitmq-discuss at lists.rabbitmq.com
> > http://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
> >
> >
>
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