Re: connection limit exceeded

Hi Jonah,

Many thanks!

>> 2) how would I look at the "open/used" connections?
> select * from pg_stat_activity;

This is a wonderful view! How would I properly terminate
these (of course there are 99 of them!) these query process?
Should I do this from unix or is there any postgres tool I
can use?

Thank you.

Regards,

Tena Sakai
tsakai(at)gallo(dot)ucsf(dot)edu

-----Original Message-----
From: Jonah H. Harris [mailto:jonah(dot)harris(at)gmail(dot)com]
Sent: Fri 11/30/2007 12:03 PM
To: Tena Sakai
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: [ADMIN] connection limit exceeded

On Nov 30, 2007 2:55 PM, Tena Sakai <tsakai(at)gallo(dot)ucsf(dot)edu> wrote:
> On my postgres 8.1.1, I get a response
> psql: FATAL: connection limit exceeded for non-superusers

> 1) Is this to do with max_connections setting in the postgres
> configuration file? (my setting is 100 (I think this is the
> default).)

Yep.

> 2) how would I look at the "open/used" connections?

select * from pg_stat_activity;

> 3) should I try restarting postgres without changing the setting?

Has to be restarted for change to take effect.

> 4) what repercussion would there be if I increase this number to,
> say, 200? (and would that be a good idea?)

A little overhead, nothing bad.

> 5) finally, what's the best fix? (Do I need to go to pgpool?)

see pgbouncer

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Jonah H. Harris, Sr. Software Architect | phone: 732.331.1324
EnterpriseDB Corporation | fax: 732.331.1301
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