Re: [Gluster-devel] RPM / BerkeleyDB on GlusterFS

[Brent A Nelson]

On Mon, 12 Jan 2009, Gordan Bobic wrote:

> Well, I'm trying to get it working at the moment, but when I'm exporting it 
> from glusterfs I get:
>
> mountd: Cannot export /var/lib/rpm, possibly unsupported filesystem or fsid= 
> required
>
> I am using the fuse stuff from here:
> http://ftp.gluster.com/pub/gluster/glusterfs/fuse/fuse-2.7.3-2.src.rpm
>
> Am I missing something?

Score one for actually useful error messages.  When reexporting GlusterFS 
via kernel-mode NFS, you need to export with fsid= to a number of your 
choice.  You also probably need to mount the GlusterFS with direct-io 
disabled (but you can do this on a GlusterFS mount that you only use for 
NFS reexport, so other GlusterFS activity won't lose performance).

That, and your custom FUSE should do the trick.

Note that, if you use UNFS3 instead of the kernel NFS server, you probably 
do still need the fsid, but you don't need to either install a custom fuse 
or to disable direct-io.

Thanks,

Brent