Re: NFS deadlock

[samg@seven4sky.com]

Jaco,

How are your boxes locking up, I have nfs in use every day,
does rpc die?

what kernel are you using?
and are you transfering linux to linux, or to some other platform.

The only time I had problems was when my client locked up
because I disconnected the server, and it hung the client,
the only solution (based on the way I connected), was to reboot.
To make matters worse, I rean a script that used du every day, and
so there were 12+ instances of du, all trying to run about.

I would suggest using a program like sysstat, or sar, to help you
analyse the issues at hand.

 -sam

> Hello there
>
> I've once again got problems with the kernel locking up.  I'm now
> convinced that it has something to do with NFS.
>
> Previously weve had 2 machines that locked up, plus my one at home,
> resulting in three machines.  Sometimes they would recover by themselves
> after some time, other times they could be left for 2 days or so without
> recovering.  All three of these use NFS to export files to other
> machines, it's the only thing we can find they have in common, other
> that x86 architecture, but then other machines would be dying as well.
> It should be noted that none of these runs on the newest hardware, but
> that should not matter, neither does any of our other servers.  We have
> a 3rd NFS server, which doesn't take nearly as heavy load via NFS.  I've
> been wondering why it hasn't locked up either, and this morning (right
> now in fact) it has decided that it is it's turn and is currently
> unusable.
>
> If anybody else is experiencing similar problems, or have possible work
> arounds, it would be appreciated if you could share your knowledge.
>
> Jaco
>
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