Hi Bruce, Thank you for your reply. It makes a lot of sense! However I don't really understand why we can't control the NUMBER of files. Are the 8 files I see a maximum usage when I reloaded the databases on the ne system or is it some sort of "plugged in value"?
Thank you for your explanation. On Mon, 27 May 2002, Bruce Momjian wrote: > Date: Mon, 27 May 2002 17:17:58 -0400 (EDT) > From: Bruce Momjian <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Cc: pgsql-hackers list <[EMAIL PROTECTED]> > Subject: Re: [HACKERS] WAL FILES > > Olivier PRENANT wrote: > > Hi every one. > > > > I just moved (at last!) to 7.2.1. Works like a charm... > > I'm suprised though by the number of WAL files. > > > > I have 8 files where postgresql.conf says WAL_FILES=4. > > > > What did I miss ? (I have no outstanding transaction) > > > > FWIW, t's on UW711. > > No, you are fine. The current GUC params are confusing. I did update > the documentation for 7.3, but I plan to reorganize those params to be > more meaningful. > > Actually, I have in TODO: > > Remove wal_files postgresql.conf option because WAL files are now > recycled > > because the param no longer controls what you think it controls. In 7.1 > WAL files where not recycled, so WAL_FILES was used to pre-allocate > files so there wasn't as much happening during checkpoint. Now, with > recycling, there is no need. > > -- Olivier PRENANT Tel: +33-5-61-50-97-00 (Work) Quartier d'Harraud Turrou +33-5-61-50-97-01 (Fax) 31190 AUTERIVE +33-6-07-63-80-64 (GSM) FRANCE Email: [EMAIL PROTECTED] ------------------------------------------------------------------------------ Make your life a dream, make your dream a reality. (St Exupery) ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
