Re: Overwhelming a Web Application Server

[Nathan Andelin <nandelin@xxxxxxxxx>]

> From: Thorbjoern Ravn Andersen
> If there is one thing experience has taught me, it is that you must 
> measure instead of guessing when analyzing performance problems.

Maybe we spent too much time talking about session limits and expiration.  Hmmm, who came up with that idea in the first place ;-)

Your point about measurement is well taken.  Walden pointed it out too.  Unfortunately, my information in this case is from a user's perspective, and a developer's perspective - not that of a site administrator.  I don't have profiling data.

But if you're willing to indulge in a somewhat hypothetical discussion, what specific measurements would you look at? Under IBM i, I think most operators would check CPU utilization & page faults, first - just because that's easy. Suppose the Tomcat server is consuming 95%.  Would that mean much?  What would you check after that?

Nathan.