[Gluster-users] Some client problems with TCP-only NFS in Gluster 3.1

Brent A Nelson brent at phys.ufl.edu
Thu Oct 21 15:18:02 UTC 2010

I see that the built-in NFS support registers mountd in portmap only with 
tcp and not udp.  While this makes sense for a TCP-only NFS 
implementation, it does cause problems for some clients:

Ubuntu 10.04 and 7.04 mount just fine.

Ubuntu 8.04 gives "requested NFS version or transport protocol is not 
supported", unless you specify "-o mountproto=tcp" as a mount option, in 
which case it works just fine.

Solaris 2.6 & 7 both give "RPC: Program not registered".  Solaris 
apparently doesn't support the mountproto=tcp option, so there doesn't 
seem to be any way for Solaris clients to mount.

There may be other clients that assume mountd will be contactable via 
udp, even though they (otherwise) happily support TCP NFS...



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