| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Qingqing Zhou <zhouqq(at)cs(dot)toronto(dot)edu> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Autovacuum in the backend |
| Date: | 2005-06-15 14:04:22 |
| Message-ID: | 200506151404.j5FE4Mb09030@candle.pha.pa.us |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general pgsql-hackers |
I am going to start working on it. I am concerned it is a big job.
I will post questions as I find them, and the one below is a good one.
---------------------------------------------------------------------------
Qingqing Zhou wrote:
>
> "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu> writes
> >
> > The start/stop routine is quite like Bgwriter.
> >
>
> I just realized that the non-standard backend can't execute any SQL command.
> If so, how would the background pg_autovacuum do "vacuum"? It could be
> forked more like a standard backend, but this is obviously not a good idea,
> since we don't know which database this process will sit on.
>
> A possible solution is that backgroud pg_autovacuum could fork another
> process to connect to postmaster as an ordinary backend each time it feels
> that a "vacuum" is needed.
>
> Any ideas?
>
> Regards,
> Qingqing
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 5: Have you checked our extensive FAQ?
>
> http://www.postgresql.org/docs/faq
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alvaro Herrera | 2005-06-15 14:05:51 | Re: Autovacuum in the backend |
| Previous Message | Scott Marlowe | 2005-06-15 13:53:19 | Re: Database became very slow(Help PLS) |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alvaro Herrera | 2005-06-15 14:05:51 | Re: Autovacuum in the backend |
| Previous Message | Bruce Momjian | 2005-06-15 13:26:20 | Re: LGPL |