How can you do Sessions at all (let alone Load Balanced, Multi-Server
Session) without either Cookies or URL-Rewriting?
(*Chris*)
----- Original Message -----
From: "Ray" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 16, 1999 3:11 PM
Subject: Re: servlet zones in Apache/JServ
> does anyone have any experience on load balancing sessions over multiple
> jvms without the use
> of cookies/url rewriting ?
>
> ray.
>
> -----Original Message-----
> From: A mailing list for discussion about Sun Microsystem's Java Servlet
> API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of Craig
> R. McClanahan
> Sent: 15 December 1999 22:15
> To: [EMAIL PROTECTED]
> Subject: Re: servlet zones in Apache/JServ
>
>
> "Dr. Dragomir D. Dimitrijevic" wrote:
>
> > Hi All,
> >
> > How grouping servlets in servlet zones in
> > Apache/Jserv affect performance? Is there
> > any deeper meaning of zones except grouping
> > of servlets based on their functionality?
> >
>
> There are at least two areas where zones have a purpose beyond
> organizational
> convenience:
>
> * Information Sharing -- although Apache JServ
> somewhat predated the concept of "web
> application" that is very clear in the 2.2 API,
> you should put servlets that need to share
> information in the same zone (i.e. the same
> servlet context in the terms of later servlet APIs).
>
> * Distributed Processing -- individual zones need
> not run in the same JVM, or on the same server.
>
> >
> > For example, is there any difference in
> > performance between 3 servlets in 1 zone and
> > 3 servlets in 3 zones?
> >
>
> If all three zones are in the same JVM, little or no difference.
>
> If your web server is overloaded, and the three zones are distributed
across
> servers of their own, the three zone case could have substantially better
> performance. It's very application dependent, though.
>
> Apache JServ in particular lets you play one more game -- you can have
more
> than one JVM containing the same servlets, and it will do a basic form of
> load
> balancing for you.
>
> >
> > Any comment will be greatly appreciated
> >
> > Dragomir
> >
>
> Craig McClanahan
>
>
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