| From: | Erik Jones <erik(at)myemma(dot)com> |
|---|---|
| To: | Adrian Moisey <adrian(at)careerjunction(dot)co(dot)za> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: connections slowing everything down? |
| Date: | 2008-04-21 14:04:28 |
| Message-ID: | C14C8588-A291-47EF-87EC-AD7FECA0DF8D@myemma.com |
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| Thread: | |
| Lists: | pgsql-performance |
On Apr 21, 2008, at 4:50 AM, Adrian Moisey wrote:
> Hi
>
> # ps -ef | grep idle | wc -l
> 87
> # ps -ef | grep SELECT | wc -l
> 5
>
>
> I have 2 web servers which connect to PGPool which connects to our
> postgres db. I have noticed that idle connections seem to take up
> CPU and RAM (according to top). Could this in any way cause things
> to slow down?
Dependant on how much memory you have in your system, yes. You can
fix the constant use of memory by idle connections by adjusting the
child_life_time setting in your pgpool.conf file. The default if 5
minutes which a bit long. Try dropping that down to 20 or 30 seconds.
Erik Jones
DBA | Emma®
erik(at)myemma(dot)com
800.595.4401 or 615.292.5888
615.292.0777 (fax)
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