Re: postgres: writer process,what does this process actually do?

On 12月22日, 下午11时26分, gryz...@gmail.com (Grzegorz Jaśkiewicz) wrote:
> On Tue, Dec 22, 2009 at 10:19 AM, Thomas <freebsd...@gmail.com> wrote:
> > Does it write data to data files to make buffer "clean"?if it
> > does ,but I can not find open files from the result of lsof -p
> >  PID.
>
> writer actually takes care about writing pages down, from shared
> memory. It is the central point that accesses disk on behalf of all
> backends (which are spawned every time you create new connection).
>
> --
> GJ
>
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hi GJ
Tks a lot .
And could you give me some info about postgres internals? Such as
ebooks or online articles.