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From Warren Bell <>
Subject Re: tomcat slowing down
Date Wed, 16 May 2012 22:38:19 GMT
A Wicket app that is not written correctly can suck up resources. Wicket
keeps track of pages a user has been on by serializing them, "back
button support". If a page has references to other objects, it
serializes them and so on and so on. It can get real ugly real quick.

Wicket has many built-in ways to keep this from happening, but it is
still easy for a beginner to write an app that can cause problems.


Warren Bell

On 5/16/12 12:49 PM, Mikolaj Rydzewski wrote:
> On 05/16/2012 05:35 PM, Christian Kaufhold wrote:
>> its not intentional but the myfaces App runs on the server for years now
>> and should not cause the problem
>> I recently deployed a wicket app and now
>> the server is slowing down when we have about 10 users or so.
> So there are two different applications? Myfaces (which used to work for
> a long time) and wicket (which takes server down)?
> I'd separate them first to have clear environment for investigation.
> Then enable GC logging, attach jvisualvm, deploy psi probe
> (, etc.

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