From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
Cc: | pgsql-patches(at)postgresql(dot)org |
Subject: | Re: Archiver restart timer |
Date: | 2004-12-02 22:40:17 |
Message-ID: | 200412022240.iB2MeHl11212@candle.pha.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-patches |
Patch applied. Thanks.
---------------------------------------------------------------------------
Simon Riggs wrote:
> On Sun, 2004-11-21 at 23:07, Simon Riggs wrote:
> > I enclose a short patch to reduce the PGARCH_RESTART_INTERVAL from 60
> > seconds to 10 seconds. The original number was plucked from thin air
> > some months ago, and I'd like to review that now based upon further
> > thought, observation and experience.
> >
> > This change has little or no effect on performance, since the interval
> > is there mainly to avoid repeated respawn attempts if archiver fails at
> > startup. Archiver start-up time is very quick, so there is little danger
> > of exceeding 10 seconds.
> >
> > On a busy system, if the archiver does die, then many files can build up
> > in the 60 seconds before respawning. That xlog file backlog could take
> > some time to clear. This then leaves a larger than normal window of data
> > loss for a possibly long period.
> >
> > It's a minor change only, with no other effect on function.
>
> ...and now for the diff -c version.... ;-)
>
> --
> Best Regards, Simon Riggs
[ Attachment, skipping... ]
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
--
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 | Bruce Momjian | 2004-12-02 22:48:02 | Re: [BUGS] pg_autovacuum in 8beta-dev3 small bug |
Previous Message | Bruce Momjian | 2004-12-02 22:37:05 | Re: Unicode characters above 0x10000 #2 |