Hello All --
I am trying to use JSPs & servlets in a clustered environment as the middle
tier of
a three-tier application; the backend is an EJB server running against an
Oracle database. The current idea (but this is flexible) is to put a
separate instance of JRun on each web server. So far, so good.
The problem is that I want use the servlet session tracking API; to my
dismay, I just found out that our load balancing hardware cannot guarantee
that successive calls from the same client will go to the same web server.
So an HttpSession object in any particular instance of JRun is useless if it
is unknown whether that client has already established a session with
another instance. AFAIK, JRun cannot be set up to automatically manage
sessions in a cluster. If this is incorrect, I would appreciate a quick
slap in the face and a pointer to the appropriate documentation. Also, any
pointers to servlet/JSP engines that do support this behavior would be
helpful.
Outside of hoping that support for this feature appears in JRun or some
other
servlet engine, does anybody know of any solutions to this problem? Seems
to me there must a lot of people working with similar requirements...
The only solution I have come up with is to implement some kind of session
manager server, either in EJB or just as a standalone. This sounds kind of
fun, but a distraction nonetheless, because it is something that *should*
come with the servlet engine.
Thanks in advance for any tips or tricks.
Michael A. Grafton
http://www.live365.com/
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