how to reduce startup time of tomcat with seam 2.0

mrebenst Mar 19, 2008 7:02 PM

Hi all

since seam 2.0.1 the startup time of my tomcat 6.0 increased dramatically.
The startup time of my application with seam 1.2.1 was 12 seconds. After migration to seam 2.0.1 my application needs 32 seconds.

The log configuration is the same. I installed the embedded JBoss http://wiki.jboss.org/wiki/Wiki.jsp?page=Tomcat6.0.x, because my application uses ejb3 session beans.

What can I do, to reduce the startup time of tomcat?

Can I configure the embedded JBoss, to start special services only?
For example I do not need web services or the time service.

How can I improve the performance of the ejb deployment?

Thanks a lot!

Martin

1. Re: how to reduce startup time of tomcat with seam 2.0

tom_goring Mar 19, 2008 7:11 PM (in response to mrebenst)

I found the best way around this was to make sure your not having to redeploy all the time. Make sure your using the seam hot deploy class feature for pojo's, facelets etc.

My app starts in jboss in 30sec on a quad core brand new linux box!! I only tend to restart every now and again !! EJB3 deployment seems to be the main thing.
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2. Re: how to reduce startup time of tomcat with seam 2.0

mdzaebel Mar 24, 2008 8:50 PM (in response to mrebenst)

Hi Tom,

this is a valuable hint but do you know, why startup time of Seam 2.0 has been duplicated?

Other posts in http://seamframework.org/tag/Performance have no further information. Even release notes (http://www.seamframework.org/Download) don't show significant changes that should influence startup this way.

Thanks,

Marc
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3. Re: how to reduce startup time of tomcat with seam 2.0

pmuir Mar 24, 2008 11:43 PM (in response to mrebenst)

In this specific case, the change in startup time is related to the change from Embedded EJB3 or Microcontainer to using Embedded JBoss - this is not the Seam startup time.
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