NFS Server Limiting open port RST response

Hi,

I have a FreeBSD + ZFS server configured as NFS server. This server is
being used to store regressions that are generated over a period of
2-3 days. Time to time nfs would drop the mount and the program fails
to find the output directory (nfs automount). On the other hand if I
use Linux NFS server to host this space, I see no issues.

Time to time I see messages like these in the logs:

Limiting open port RST response from 334 to 200 packets/sec

It seems that the automount dismounts the server while the regressions
are being computed and the output is idle. I even kept one terminal
window open on the compute server that is "cd" into the output
directory so that it prevents the dismounting the automount but it
still fails.

Do I need to tweak any parameters? Can I stop dismounting (from NFS
server side)?

Any help would be appreciated.

Thanks.
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[Artem Belevich-3]

On Tue, May 22, 2012 at 11:35 AM, [hidden email] <[hidden email]> wrote:

> Hi,
>
> I have a FreeBSD + ZFS server configured as NFS server. This server is
> being used to store regressions that are generated over a period of
> 2-3 days. Time to time nfs would drop the mount and the program fails
> to find the output directory (nfs automount). On the other hand if I
> use Linux NFS server to host this space, I see no issues.
>
> Time to time I see messages like these in the logs:
>
> Limiting open port RST response from 334 to 200 packets/sec

Which FreeBSD version are you using? This problem sounds rather
similar to what I've fixed last fall in head@225234, stable/8@225384

--Artem
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Hi,

I'm using "9.0-RELEASE #0: Tue Jan  3 07:46:30 UTC 2012"

Thanks,

On Tue, May 22, 2012 at 12:26 PM, Artem Belevich <[hidden email]> wrote:
>
> Which FreeBSD version are you using? This problem sounds rather
> similar to what I've fixed last fall in head@225234, stable/8@225384
>
> --Artem
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[Artem Belevich-3]

On Tue, May 22, 2012 at 2:16 PM, [hidden email] <[hidden email]> wrote:
> Hi,
>
> I'm using "9.0-RELEASE #0: Tue Jan  3 07:46:30 UTC 2012"

Looks like your issue is not the same after all. The fix for the issue
I had in mind is in 9.0 since BETA2.

--Artem.

>
> Thanks,
>
> On Tue, May 22, 2012 at 12:26 PM, Artem Belevich <[hidden email]> wrote:
>>
>> Which FreeBSD version are you using? This problem sounds rather
>> similar to what I've fixed last fall in head@225234, stable/8@225384
>>
>> --Artem
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