It depends on the workload. Like native NFS, even with NFS-Ganesha, data is
routed through the server where its mounted from. In addition NFSv4.x protocol
adds more complexity and cannot be directly compared with NFSv3 traffic. However
with pNFS, I/O is routed to data servers directly by the NFS clients which
results in performance gain for larger I/O workloads. Also we do have plan to
support multiple metadata servers going forward.
Thanks,
Soumya
----- Original Message -----
From: "Prasun Gera" <prasun.gera at gmail.com>
To: "Joe Julian" <joe at julianfamily.org>
Cc: gluster-users at gluster.org
Sent: Thursday, August 13, 2015 2:55:17 AM
Subject: Re: [Gluster-users] ganesha BFS
And do either of them perform better than fuse mounts ? With native nfs, all
data is routed through the server where it's mounted from, which makes HA
and load balancing difficult. For pNFS, there is a single metadata server. How
does that affect HA and load ? I thought one of the main goals of gluster was
decentralized metadata. Where do the four options (fuse, native nfs, nfsv4, pnfs
) stand in terms of benefits and disadvantages ?
On Wed, Aug 12, 2015 at 11:26 AM, Joe Julian < joe at julianfamily.org >
wrote:
nfs-ganesha is a much more feature rich nfs server that uses libgfapi to access
the gluster volume in userspace. This userspace solution avoids the context
switches like the native gluster nfs does, but adds support for pnfs/nfsv4 and
udp.
>From the development standpoint, they have a full set of developers working
only on and focused only on their nfs server whereas the gluster version was
implemented as a stop-gap to provide a solution where the kernel nfs re-share
was failing.
I think nfs-ganesha is a better solution. There is integration work being done
in glusterfs to make its use seamless, so I suspect that's the long-term nfs
solution that will eventually replace gluster's native nfs.
On 08/12/2015 09:54 AM, paf1 at email.cz wrote:
Hello Dears,
can anybody explain advanteges / disadvantages of Ganesha NFS ??
Will U reccomend me go through this way ??
( 4 node glusterFS )
regs.
Pavel
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