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@gallo.ucsf.edu

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

On Nov 30, 2007 2:55 PM, Tena Sakai <tsakai@gallo.ucsf.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
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