On Wed, Sep 13, 2000 at 11:56:56PM +0200, Trond Myklebust wrote:
> After consultation with the appropriate authorities, it turns out that
> the Sun-code based clients do in fact turn off data caching entirely
> when using NLM file locking.
Entirely? That's interesting, because for our consistency requirements we
only need the data cache to be flushed for a particular inode at the time
of a locking call. At least if we port to Solaris (hah!) we won't have
this particular problem in our clients.
> Attribute cache consistency checking on
> NFSv4 differs from v2/v3 in that you have a new attribute that is
> guaranteed to change every time the file changes.
That would be very welcome, but it's doubtful we could get an nfsv4 server
to run on our old bsdi 1.x-based servers :)
Thank you very much for continuing to pursue this. I wish I were an NFS
expert, but as I may have said elsewhere, this task falls to me as the
Linux evangelist at the office.
Jeff
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