Gluster users - Mar 2009 - Accessing the host glusterFS directory from OpenVZ virtual server

Hi.

This might be unrelated to this list, but I looking for a way to access
GlusterFS partition from OpenVZ virtual server.

Meaning a virtual server running on a particular server will access it's
host GlusterFS directory.

The immediate idea I had was to have the virtual server as the client of
GlusterFS, as it would basically happen on same machine networking, but
perhaps there is a way to write the data directly to host partition?

Thanks.
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On Sun, Mar 8, 2009 at 3:29 PM, Stas Oskin <stas.oskin at gmail.com>
wrote:
> Hi.
>
> This might be unrelated to this list, but I looking for a way to access
> GlusterFS partition from OpenVZ virtual server.
>
> Meaning a virtual server running on a particular server will access
it's
> host GlusterFS directory.
>
> The immediate idea I had was to have the virtual server as the client of
> GlusterFS, as it would basically happen on same machine networking, but
> perhaps there is a way to write the data directly to host partition?
If the glusterfs partition is accessed by other machines/VMs then it
has to be accessed by the openVZ VS (even if it is on the same
machine) as a glusterfs client (i.e whatever you just suggested above)

Krishna
>
> Thanks.
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
>
>

>
> A disk partition should be accessed through the same posix-locks
> subvolume. That is the condition to be met. This restriction is so
> that processes use the same locking translator.
>
Perhaps the VM, if it can access the host machine partition, will use the
locking translator automatically via host FUSE?

>
> Can a virtual machine mount a partition that is already mounted by a
> host OS? Any idea?

I think we should ask the list about this. Xen can, but I'm not so sure
about OpenVZ.

The main benefit for this approach I think, will be saving the localhost
routing done by host machine, which would translate to saving CPU cycles.
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