Frames
-- James Mitchell Software Engineer / Open Source Evangelist EdgeTech, Inc. 678.910.8017 AIM: jmitchtx ----- Original Message ----- From: "Woodchuck" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]>; "Craig McClanahan" <[EMAIL PROTECTED]> Sent: Monday, September 13, 2004 1:41 PM Subject: Re: the real world is always dirtier > hihi! > > but theoretically, isn't it impossible to have more than one request at > any single point in time? > > i'm trying to picture simultaneous requests for the same session, but i > can't see it... :p > > when you say simultaneous requests for the same session do you mean: > - the user has logged into the website, and then: > - press the form submit button inhumanely fast > OR > - spawn another browser from original browser and then click on > each browser's submit as fast as possible > > is the root of the problem because the user can make requests faster > than the clustered servers can sync to the latest copies of the session > in question? (assuming true load balancing strategy employed -- ie. > session does not stick to any server instance) > > woodchuck > > > --- Craig McClanahan <[EMAIL PROTECTED]> wrote: > > > On Mon, 13 Sep 2004 12:08:06 -0400, Brantley Hobbs > > <[EMAIL PROTECTED]> wrote: > > > > > > Some platforms don't allow sessions to be available to each machine > > in a > > > cluster, most notably the web "platform" (I use the term loosely) > > found > > > to be in widespread use by a certain large unnamed software company > > in > > > the northwestern U.S. In that case, using sessions can be an > > issue. > > > > It's not just our friends up north. > > > > The J2EE specs require that, if simultaneous requests for the same > > session are being procesed, they *must* be processed on the same > > server instance. This is required in order to maintain the session > > semantics (such as a session attribute set in one of the simultaneous > > requests being instantly visible to the other requests for that > > session). > > > > This doesn't mean you can never move a session from one server > > intsance to another; it only means that you can only do so in between > > requests. > > > > Craig > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > _______________________________ > Do you Yahoo!? > Shop for Back-to-School deals on Yahoo! Shopping. > http://shopping.yahoo.com/backtoschool > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
