First, I only mentioned WebLogic to help illustrate my point about vendor
differentiation.
Second, when you say "better", you have to tell me what we're comparing it
to.
I'm not an expert in WebLogic clustering, but I believe that their container
does have this restriction. That's because it doesn't do cache
coordination. Because of this, each cluster member must assume that other
members in the cluster may be mutating the database, and by definition, they
won't be aware of the changes.
TopLink (WebGain) claims to have a container that will coordinate its cache
across members of a WebLogic cluster. I haven't tested this feature yet.
Presumably, they would also offer the ability to operate in "exclusive"
mode.
-Tom
-----Original Message-----
From: roopa kotha [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 20, 2001 6:12 PM
To: Larson, Tom
Subject: clustering
Hi Tom,
Can you please explain how BEA's Weblogic's solution for clustering is
better.
i thought if we use clustering, we have to set db is shared that means
everytime it has to get the data from the db(so we are loosing the advantage
of cacheing) . Correct me if i am wrong
Thanks
Roopa
>I say we should demand 100% compliance with open standards such as >J2EE,
>then we should purchase from the vendors who implement them in the >ways
>that
>work best for us. If that means we become dependent on a vendor (BEA
>because we like WebLogic's clustering solution, or WebGain because we >like
>the TopLink container) then so be it. I have no problem depending on a
>better implementation of the standard -- as long as the extended >features
>are made available behind the J2EE APIs.
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
**************************************************************************
The Information transmitted herewith is sensitive information intended only
for use to the individual or entity to which it is addressed. If the reader
of this message is not the intended recipient, you are hereby notified that
any review, retransmission, dissemination, distribution, copying or other
use of, or taking of any action in reliance upon, this information is
strictly prohibited. If you have received this communication in error,
please contact the sender and delete the material from your computer.
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff EJB-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
