[Zope-dev] Weird Data.fs corruption...zope-dev@zope.org

[Jim Fulton]

Dieter Maurer wrote:
> 
> Martijn Pieters writes:
>  > Ai, NFS! There is a known no-no about using NFS for Data.fs storage, it leads
>  > to data corruptions. Zope and NFS do not mix.
> Huch, why that?
> 
> I use Data.fs (occasionally) over NFS and did not yet have had
> problems.
> And appending to a file should work over NFS.
> Locking may be a bit more problematic, but this is not an
> issue provided I ensure that only on Zope process runs at a
> time.

Locking was the main reason why I recommended against using
NFS. This is much less of an issue with ZServer than it was with
the old PCGI publisher, which tried to guess when a site was 
down and automatically restart it when it was.

I also generally don't trust NFS with something as important
as data Data.fs file.

Note that the subject corruption error was due to a software
bug that appeared briefly in the Zope CVS.

Jim


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