Re: Application variables timeout under Tomcat

["Craig R. McClanahan" <cr...@apache.org>]

On Wed, 5 Dec 2001 julien-martin@wanadoo.fr wrote:

> Date: Wed, 5 Dec 2001 00:14:25 +0100
> From: julien-martin@wanadoo.fr
> Reply-To: Tomcat Users List <to...@jakarta.apache.org>
> To: Tomcat Users List <to...@jakarta.apache.org>
> Subject: Application variables timeout under Tomcat
>
> I am running Tomcat 4.0.1 and I would like to know how long application
> variables are kept in memory.  Do they eventually timeout or are they kept
> in memory until the next server reboot?
> Can anyone help?
> Thanks in advance,
> Julien.
>

The answer depends on what you mean by "application variables".  The only
time Tomcat *ever* removes anything is under the following circumstances:

* Your session times out --> all session attributes are
  removed.  They will be available for garbage collection
  unless your application maintains other references to them.

* Your application is restarted (either because you have reloadable
  set to true or you used the Manager app) --> all classes loaded
  from /WEB-INF/classes and /WEB-INF/lib (and all instances of those
  classes) are thrown away, and your web app is restarted with a new
  class loader.  Note that this does *not* affect classes loaded
  from "common/lib" or "lib".

* Tomcat is shut down --> everything is removed.

Craig McClanahan


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