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Help in interpreting logs

 
Greg Soulsby
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In my logs I am getting the following messages each day. What do they mean? Are sessions lasting 30 minutes? Does that mean memory is taken up the for the 30 min? How do you work out much?

Nov 5, 2011 11:21:22 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: sessionCreated('5909F4F5B107F15177F8F9A8C3BCDC53')
Nov 5, 2011 11:33:34 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: sessionCreated('74C1BD2F508E52DED6A7E61C79C31712')
Nov 5, 2011 11:51:52 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: sessionDestroyed('5909F4F5B107F15177F8F9A8C3BCDC53')

I am having intermittent Java heap size problems and maybe this has something to do with it.
 
Tim Moores
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Are sessions lasting 30 minutes?

That might be the default, or your web app might be configured that way (in web.xml).

Does that mean memory is taken up the for the 30 min?

Yes. Not much, though, if you don't put anything into the session.

Note that JSP pages automatically create sessions for each user unless you specifically tell them not to (via <%@ page session="false" %>).
 
Greg Soulsby
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Thanks Tim, sounds like I can relax about this particular message.
 
I agree. Here's the link: http://aspose.com/file-tools
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