Re: performance problem - 10.000 databases - Mailing list pgsql-admin

From Jeff
Subject Re: performance problem - 10.000 databases
Date
Msg-id 20031106093725.20d3a43f.threshar@torgo.978.org
Whole thread Raw
In response to Re: performance problem - 10.000 databases  (Marek Florianczyk <franki@tpi.pl>)
Responses Re: performance problem - 10.000 databases  (Marek Florianczyk <franki@tpi.pl>)
Re: performance problem - 10.000 databases  ("scott.marlowe" <scott.marlowe@ihs.com>)
List pgsql-admin
On 06 Nov 2003 15:21:03 +0100
Marek Florianczyk <franki@tpi.pl> wrote:


> fsync = false

HOLD THE BOAT THERE BATMAN!

I would *STRONGLY* advise not running with fsync=false in production as
PG _CANNOT_ guaruntee data consistancy in the event of a hardware
failure.  It would sure suck to have a power failure screw up your nice
db for the users!


> wal_buffers = 1024

This also seems high. come to think about it- shared_buffers is also
high.

> commit_delay = 10000

I could also read to data loss, but you'll get a speed increase on
inserts.

One of the best things you can do to increase insert speed is a nice,
battery backed raid card with a pile of disks hanging off of it.


--
Jeff Trout <jeff@jefftrout.com>
http://www.jefftrout.com/
http://www.stuarthamm.net/

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