On 4/2/20 8:35 AM, Abraham, Danny wrote:
Big installation: max_connections is 1200, shared_buffers is 2GB
Have you confirmed that the above is actually in effect by doing?:
show max_connections;
-----Original Message-----
From: Adrian Klaver <adrian.klaver@xxxxxxxxxxx>
Sent: Thursday, April 02, 2020 6:30 PM
To: Abraham, Danny <danny_abraham@xxxxxxx>; pgsql-general@xxxxxxxxxxxxxx
Subject: [EXTERNAL] Re: too many clients already
On 4/2/20 8:22 AM, Abraham, Danny wrote:
No pg-bouncer or connection pooling.
ps -elf | grep postgres | grep idle | wc -l ==> 61
and BTW: Running, say 500 one command psql in parallel will have the same affect..
Hmm. In psql on the cluster in question what does below return?:
show max_connections;
-----Original Message-----
From: Rob Sargent <robjsargent@xxxxxxxxx>
Sent: Thursday, April 02, 2020 6:10 PM
To: Abraham, Danny <danny_abraham@xxxxxxx>
Cc: pgsql-general@xxxxxxxxxxxxxx
Subject: [EXTERNAL] Re: too many clients already
On Apr 2, 2020, at 9:06 AM, Abraham, Danny <danny_abraham@xxxxxxx> wrote:
Hi,
Will appreciate a hint here.
Running on a big and stressed AIX platform and receiving lots of "CDTFATAL: sorry, too many clients already"
and transient difficulty to log in.
Happens on all PG versions (Tested 9.5,10.4,11.5)
Big installation: max_connections is 1200, shared_buffers is 2GB
But .. select count(*) from pg_stat_activity is only 66.
Thanks
Danny
Lots of idle, kept-alive clients? Do you have a connection pooler (e.g. pg-bouncer)?
--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx
