Re: RE: [COMMITTERS] pgsql/src/backend/access/transam ( xact.c xlog.c)

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От Tatsuo Ishii
Тема Re: RE: [COMMITTERS] pgsql/src/backend/access/transam ( xact.c xlog.c)
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Msg-id 20001111180237F.t-ishii@sra.co.jp
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Ответ на Re: RE: [COMMITTERS] pgsql/src/backend/access/transam ( xact.c xlog.c)  (Alfred Perlstein <bright@wintelcom.net>)
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> * Tatsuo Ishii <t-ishii@sra.co.jp> [001110 18:42] wrote:
> > > 
> > > Yes, though we can change this. We also can implement now
> > > feature that Bruce wanted so long and so much -:) -
> > > fsync log not on each commit but each ~ 5sec, if
> > > losing some recent commits is acceptable.
> > 
> > Sounds great.
> 
> Not really, I thought an ack on a commit would mean that the data
> is actually in stable storage, breaking that would be pretty bad
> no?  Or are you only talking about when someone is running with
> async Postgresql?
> 
> Although this doesn't have an effect on my current application,
> when running Postgresql with sync commits and WAL can one expect
> the old behavior, ie. success only after data and meta data (log)
> are written?

Probably you misunderstand what Bruce expected to have. He wished to
have not-everytime-fsync as an *option*. I believe we wil do strict
fsync in default.
--
Tatsuo Ishii


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