Re: Finding number of current connections - Mailing list pgsql-admin

From reina@nsi.edu (Tony Reina)
Subject Re: Finding number of current connections
Date
Msg-id f40d3195.0108090837.4d317746@posting.google.com
Whole thread Raw
In response to Finding number of current connections  ("Tauren Mills" <tauren@servlets.net>)
List pgsql-admin
tauren@servlets.net ("Tauren Mills") wrote in message news:<NBBBLBKDJMGDNPMDGAABAEBKBBAB.tauren@servlets.net>...
> I need to find a way to determine how many concurrent connections are being
> made to the database server at any given time.

You may find what you are looking for with Bruce Momjian's pgmonitor
tool.

http://greatbridge.org/project/pgmonitor/projdisplay.php

Alternatively, you could just use a simple shell script. All of the
Postgres connections are separate jobs with the identifier "postgres:"
at the begining. So you could simply do:

ps ax | grep postgres:

on a RH Linux machine.

With some sed/awk commands, you could sort the job information even
finer. For example, to find out which users are logged onto the
database at any given time:

ps ax | grep postgres: | awk '{print $6 | "sort" } ' | uniq

I'm sure if you fooled around with this, you could come up with
something tailored to your needs in no time.

-Tony

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