Re: WAL feature

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От Bruce Momjian
Тема Re: WAL feature
Дата
Msg-id 200104280044.f3S0idV19972@candle.pha.pa.us
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Ответ на RE: WAL feature  ("Mikheev, Vadim" <vmikheev@SECTORBASE.COM>)
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[ Charset ISO-8859-1 unsupported, converting... ]
> > Yep, WAL collects all database changes into one file.  Easy to see how
> > some other host trying to replication a different host would find the
> > WAL contents valuable.
> 
> Unfortunately, slave database(s) should be on the same platform
> (hardware+OS) to be able to use information about *physical*
> changes in data files. Also, this would be still *async* replication.
> Maybe faster than rserv, maybe with less space requirements (no rserv'
> log table), but maybe not.
> 
> I believe that making efforts to implement (bi-directional) *sync*
> replication would be more valuable.

Or maybe an platform-neutral interface to the WAL file.  Seems this
would fit a need.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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