[OmniOS-discuss] Win 8.1 NFS client

[Schweiss, Chip]

You may have revealed the cause of a problem I've seen a few times, but
have not made the correlation.  In my case we have 100+ CentOS NFS clients
and a periodic use of 2012R2 server connecting via NFS.

I have had a few drop offs of the NFS server with out a single line in the
event logs, just complete non-responsiveness.

I will definitely be digging deeper into this.

This is most likely Illumos wide, not just OmniOS.   I will report back to
both lists if I can get anything reproducible.

-Chip


On Fri, Jun 13, 2014 at 5:54 AM, Valrhona <valrhona at gmail.com> wrote:

> I have a very stable OmniOS machine (Dell T710, zpools are striped
> mirrors of 2.5 SAS drives and 3-4 TB, DDRdrive ZIL and 72 GB of RAM,
> so no L2ARC). I installed a new copy of r151010 a couple of months
> ago, and in general have not had any problems at all. Until today.
>
> My older machines run either OpenIndiana, Xubuntu 14.04 LTS, and Win
> 7. I share all of the zfs filesystems via NFS, and use Napp-It to
> monitor status (as I tend to prefer the command line). In all cases,
> the NFS drives were mounted to client computers with the "mount"
> command (in either windows, Linux or Solaris). For windows, I used its
> "mount" command, and have consistently had mediocre performance (30
> MB/sec over gigabit, when both Linux and OpenSolaris can transfer data
> at 110+ MB/sec.), and long latency, but otherwise it works.
>
> Today I got a new laptop, which I installed Win 8.1 Enterprise on. The
> NFS connection is MUCH faster, both in terms of perceived latency, and
> transfer rates, which for large sequential transfer can hit 80-90
> MB/sec (rates that are typical when I NFS mount in Linux or
> OpenSolaris).
>
> The problem is, after I use the NFS mount to my new machine, it
> somehow causes OmniOS's NFS server to drop out, and say it's "offline"
> in, for instance, Napp-It, and the zfs filesystems are then
> inaccessible (though I can still look at the web status, and SSH into
> the box, so it's not a general problem). As a result, t
>
> Has anyone else ever seen this, where an NFS client can cause
> "nfs-server" on the host to freeze? I can reboot the server, but that
> is not a great solution, and would like to know what I can do to
> figure this problem out better. Thank you all in advance!
>
> Peter
> _______________________________________________
> OmniOS-discuss mailing list
> OmniOS-discuss at lists.omniti.com
> http://lists.omniti.com/mailman/listinfo/omnios-discuss
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://omniosce.org/ml-archive/attachments/20140613/f4d424e7/attachment.html>