I have a need to passivate HttpSessions on a more aggressive basis than that of timing them out.

Default behavior is to time out a sessions after 30 minutes of inactivity -- which is fine.

Rather I need to be able to passivate sessions to disk after say 10-15 minutes or rather passivate all but the last 'n' (e.g. 200) to disk -- re-activating these if/when necessary (i.e. when a request comes in for the given session).

Am I missing a configuration option for such behavior in Tomcat? [Is this something SunONE or WebSphere add on top of the base code they share with Tomcat?]

If not, do APIs exist for:

   * Passivation of individual sessions, i.e. serializing them to disk,
     calling the right listeners, etc?
   * Activation of individual sessions, i.e. re-storing them from disk,
     cleaning files from disk as appropriate, calling the right
     listeners, etc?
         o Is this done automatically on attempts to access the session
           in question?

I'm using Tomcat 5.0.30 and 4.1.24, though I could limit things to 5.0.30 if that helps. [I could /possibly/ even pursue 5.5.x if that helps enough, but there are significant obstacles to us pursuing this direction at this time.]

Any/all pointers in this regard would be appreciated.

Thanks for your time.

--
Jess Holle
[EMAIL PROTECTED]



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