re: [SSI] Multithreaded Java Program and SSI

[Greg F. <freemyer@NorcrossGroup.com>]

According to Bruce Walker a couple of months ago the current answer is no.

http://www.geocrawler.com/archives/3/14772/2002/6/50/8843867/

OTOH, do you really need that.  I support a 4-tier enterprise class Tomcat =
based application.

We have a small servlet stubb that is invoked directly by Tomcat, one instance =
per connection/thread.

The stubs then use RMI to connect to a Java-based application which actually =
does the work.

If you did something similar, and the back-end worker process _could_ be =
composed of multiple process instances as opposed to multiple thread instances, =
then you could take advantage of the SSI loadleveller to move your daemon =
process instances around to the least loaded node.

Greg
 >>  Hi ,

 >>  I've a very general question about SSI-CLusters and Java. We are running a
 >>  Webapplication on Apache-Tomcat/Cocoon with many dynamicly generated pages
 >>  and nedd to scale up our server. Every request to our Server starts about
 >>  10
 >>  Threads for aggregating the page.
 >>  So would we have better Perfomance with a SSI-Cluster? Will the thread
 >>  migrate on another node? Does anybody ever run a multithreaded java
 >>  program
 >>  on a SSI-Cluster?
 >>  And if, what's your experience with that?
 >>  Any comments would be appreciated.

 >>  Thank you ver mutch in advance.

 >>  Sincirly
 >>  Christoph Gaffga
 >>  cg...@tr...




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Greg Freemyer
Internet Engineer
Deployment and Integration Specialist
Compaq ASE - Tru64 v4, v5
Compaq Master ASE - SAN Architect
The Norcross Group
www.NorcrossGroup.com