Thanks for these workarounds I have something similar implemented. It would've been nice to have Postgres maintain the
high-watermark inside the database in a pg view such as pg_stat_database. This is useful from a capacity perspective
wherethat can be monitored to alert DBAs when a threshold is reached. Other DB engines has such feature built in such
asOracle. Perhaps something to be on Postgres TO DO list soon :)
Regards,
Husam
-----Original Message-----
From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of Alvaro Herrera
Sent: Monday, August 09, 2010 3:39 PM
To: Scott Marlowe
Cc: Tomeh, Husam; pgsql-admin@postgresql.org
Subject: Re: [ADMIN] High-water Mark for number of sessions/connections reached in Postgres
Excerpts from Scott Marlowe's message of lun ago 09 18:29:58 -0400 2010:
> If you want a date stamp, you can change the ps ax stuff to look like this:
>
> date +"%Y-%m-%d %H:%M:%S"|tr "\n" ":";ps ax|grep postgres:|grep -v grep|wc -l
FWIW the "grep" business is best solved by ps itself, something like
ps ax -C postgres
date +"%Y-%m-%d %H:%M:%S"|tr "\n" ":";ps ax -C postgres|wc -l
--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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