Re: Multiple backends on a single physical database

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От Chris Miles
Тема Re: Multiple backends on a single physical database
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Msg-id 20021012161939.K6712@psychofx.com
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Ответ на Re: Multiple backends on a single physical database  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: Multiple backends on a single physical database  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: Multiple backends on a single physical database  ("Chad R. Larson" <chad@eldocomp.com>)
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On Sat, Oct 12, 2002 at 11:11:53AM -0400, Bruce Momjian wrote:
> Good question.  It is my understanding that fsync, locking, and the
> order of writes is not guaranteed in NFS like it is for local file
> systems.  I question how well it would handle any of the failure modes
> that local file systems can withstand.

Good point.  Perhaps that depends on the NFS client and server combination
also?  I know that Netapp worked with Oracle and both companies guarantee
and recommend a Sun/Netapp Oracle over NFS solution (which I have setup
in a previous life) and such a solution works very well.

Nobody is going to make such a guarantee with postgresql (are they?)
so consider us a case study for such a setup.  So far, so good, even
under heavy load testing.

If anybody has any horror stories with postgresql over NFS, please share
them.

Cheers,
Chris.


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