Re: Documentation bug: reference to checkpoint activity in bgwriter
От | Robert Haas |
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Тема | Re: Documentation bug: reference to checkpoint activity in bgwriter |
Дата | |
Msg-id | CA+TgmoZ3WPNjB3e0P0iLPjoWr=yE5jEUBwEwArjeXaypBLS3Sg@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Documentation bug: reference to checkpoint activity in bgwriter (Peter Geoghegan <peter@2ndquadrant.com>) |
Ответы |
Re: Documentation bug: reference to checkpoint activity in bgwriter
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Список | pgsql-bugs |
On Mon, Jan 9, 2012 at 2:37 PM, Peter Geoghegan <peter@2ndquadrant.com> wro= te: > On 9 January 2012 18:47, Robert Haas <robertmhaas@gmail.com> wrote: >> On Sat, Dec 31, 2011 at 8:54 PM, Peter Geoghegan <peter@2ndquadrant.com>= wrote: >>> ISTM that the following reference, at config.sgml line 1345, ought to >>> be adjusted due to the introduction of the new checkpointer process: >>> >>> =A0Setting this to zero disables >>> =A0 =A0 =A0 =A0 background writing (except for checkpoint activity). >> >> Hmm, so what should we adjust it *to*? > > How about "Setting this to zero disables background writing. Note that > checkpoints, which are managed by a separate, dedicated auxiliary > process, are unaffected." > > If this was the first release of Postgres, I'd suggest that we remove > any references to checkpoints, which are sort of orthogonal to the > stated main function of the bgwriter in past releases, which is to > clean dirty buffers so that backends don't have to. However, people > may still expect the bgwriter to manage checkpointing, particularly if > they're working off old sources of information, so it's useful to set > them straight. OK, done. --=20 Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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