Sporadical NFS errors with NetApp backend (solved)

[Lars Köller]

----------

Hello,

alas I get not response to my question, but some more googling and 
testing leads to a solution.

With the following mount options all runs well:

  tcp,rw,bg,dumbtimer,-r=32768,-w=32768

the most important thing is to not use any of the following

  intr or soft

it seems (only idea and wild speculation), that with even the intr 
mount option some IO ops are interrupted, so that I see the reported 
errors below.

Perhaps the problem are a signal send to a thread???

Regards

Lars


In reply to Lars Köller who wrote:
 
> At the moment I have a really strange problem in our environment.
> 
>   - NetApp Cluster NFS file server
>   - HPUX-11, Solaris-8, FreeBSD-4.11 Clients
> 
>   - 60000 Virus/Spam scans a day, spread over 5 different FreeBSD Machines,
>     two different hardware bases, 1GBit Network
> 
> A problem occurs with the Sophos PMX (PureMessage Anti-Spam/Anti-Virus)
> Application. 1-3 times a day the following happens:
> 
>   - pmx_log:3 2005-06-23T12:26:58 [36968,milter] pmx_file(): 
>     Can't append message info to '/usr/local/pmx4/var/qdir/tmp/1119522418-36968:135299072-ZN0IIE00EX1IKSAE.00-738-vscan1.hrz.uni-bielefeld.de': Bad file descriptor at /usr/local/pmx4/lib/site_perl/5.6.1/PureMessage/MessageFile.pm line 124.
> 
>   - /usr/local/pmx4/var is located on the NetApp Filer (NFSv3)
> 
>   - Line 124 referenced above looks like (close($f)):
> 
> sub make {
>     my $class = shift;
>     my $fname = shift;
>     my $minfo = @_ == 1 ? shift : do {
>         require PureMessage::MessageInfo;
>         PureMessage::MessageInfo->new(@_);
>     };
>     open(my $f, ">>", $fname) || die "Can't append to '$fname': $!\n";
>     print $f _minfo_block($minfo);
>     close($f) || die "Can't append message info to '$fname': $!";
>     1;
> }
> 
>   - BUT: The message-info is absolutely correct appended!
> 
> This does not occur if I move /usr/local/pmx4/var on a local disk.


-- 
 Dr. Lars Köller \   E-Mail : Lars.Koeller at Uni-Bielefeld.DE
  Leitung Systeme \  Tel: +49 521/106-4964, FAX: +49 521/106-154964
  u. Serverdienste \ PGP-Key: http://www.uk.pgp.net/pgpnet/wwwkeys.html
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