[Gluster-users] NFS performance degradation in 3.3

Anand Avati anand.avati at gmail.com
Wed Jul 18 19:54:27 UTC 2012


Is there anything in the nfs logs?

Avati

On Wed, Jul 18, 2012 at 9:44 AM, samuel <samu60 at gmail.com> wrote:

> Hi all,
>
> We're experiencing with a 4 nodes distributed-replicated environment
> (replica 2). We were using gluster native client to access the volumes, but
> we were asked to add NFS accessibility to the volume. We then started the
> NFS daemon on the bricks. Everything went ok but we started experiencing
> some performance degradation accessing the volume.
> We debugged the problem and found out that quite often the NFS glusterfs
> process (NOT the glusterfsd) eats up all the CPU and the server where the
> NFS is being exported starts offering really bad performance.
>
> Is there any issue with 3.3 and NFS performance? Are there any NFS
> parameters to play with that can mitigate this degradation (standard R/W
> values drops to a quarter of standard values)?
>
> Thanks in advance for any help,
>
> Samuel.
>
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