Since users have to authenticate on my system (which analyses internal users accessing the Internet through a proxy server), we record their login names in the logfiles. I wrote Unix shell and perl scripts to separately analyse the logfiles for concurrency (how many users created a log entry each minute), as well as counting up how many unique minutes during the day that a user generated a log file entry. I know there are some caveats to the stats, though, but it is useful in identifying trends, or explaining performance slowdowns (when some major news event (like 9/11) causes everyone to immediately check up on their favourite news website!).

Wallace.

Walter Ian Kaye wrote:

At 01:59p -0400 07/19/2006, D'Amore, Chris didst inscribe upon an electronic papyrus:

Content-class: urn:content-classes:message
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Is there any way to show how many users are logged in at a given time


Usually sites do that in real time; I'm sure you've seen sites where the page announces "Currently 53 users are online" or somesuch phrase.

and possibly how long they are logged on for?


This is generally info your web application knows and report generators don't.
You could generate your own log files with data such as this:

date/time  in   username
date/time  out  username  length

Then feed those to Analog for reporting.

-W
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