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Date:      Tue, 22 May 2012 11:35:05 -0700
From:      "bsalinux@gmail.com" <bsalinux@gmail.com>
To:        freebsd-fs@freebsd.org
Subject:   NFS Server Limiting open port RST response
Message-ID:  <CAB3Sx6dMf1QR7SrnP8jAunH1hdnBq=BPv%2BN4MFgFM7ypvxYMeQ@mail.gmail.com>

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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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