From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
Cc: | Serge Sozonoff <serge(at)globalbeach(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: open pgsql files (was Re: [GENERAL] Mime-Version: 1.0) |
Date: | 2000-02-28 09:31:56 |
Message-ID: | 200002280931.EAA23527@candle.pha.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
> > If I have 40 tables and each table is made up of 6-7 files including
> > index's etc then that
> > means that per process I could be opening up to 200-240 !!
> >
> > This means that with 64 db connections I could be hitting 12800-15360 open
> > files
> > on my system!!! What is the current Linux limit without kernel re-compile?
> > What is the Linux
> > limit with kernel re-compile?
> >
> > Why can't I just tell postgres to close thos files say 2 minutes after he
> > is done with them
> > and they have been idle?
>
> Take a look at /pg/backend/storage/file/fd.c::pg_nofile(). If you
> change the line:
This actually brings up a good point. We currently cache all
descriptors up to the limit the OS will allow for a process.
Is this too aggressive? Should we limit it to 50% of the maximum?
--
Bruce Momjian | http://www.op.net/~candle
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
From | Date | Subject | |
---|---|---|---|
Next Message | Henrique Pantarotto | 2000-02-28 11:53:09 | RES: [GENERAL] Stored procedures returning multiple values... ? |
Previous Message | Bruce Momjian | 2000-02-28 09:10:26 | Re: open pgsql files (was Re: [GENERAL] Mime-Version: 1.0) |