Re: nfsd, rmtab, failover, and stale filehandles

[Garrick Staples <garrick@usc.edu>]

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On Thu, May 06, 2004 at 06:24:55PM -0400, J. Bruce Fields alleged:
> On Thu, May 06, 2004 at 02:53:11PM -0700, Garrick Staples wrote:
> > I'm at a total loss.  Everything I'm reading tells me that all I need to ensure
> > is that fs device names are the same on both servers so that the generated
> > filehandles are the same, and that I need to move all lines matching
> > ":$mountpoint:" in rmtab to the new server.  The former is done since I'm using
> > persistant device numbers with lvm.  The latter shouldn't be needed because I'm
> > using the "new" proc interface with 2.6.5.
> > 
> > rmtab definitly doesn't do any noticable difference.  I can add random text
> > and blank it out with no noticable difference on the clients.
> > 
> > Is this a client problem?  The clients are all 2.4.24 and 2.4.26.
> > 
> > All clients and servers are using vanilla kernels.
> Hmm, also, could you try recompiling mountd with the following patch
> applied?

No effect.  All I did was kill mountd, run the patched mountd, and try to 'ls'
on the client.

Watching an strace of mountd, it doesn't seem that mountd is ever contacted.
The client reports stale filehandle pretty much immediately, and mountd doesn't
do anything.

-- 
Garrick Staples, Linux/HPCC Administrator
University of Southern California

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