I have a general question on this topic?
How can redployment work within the context of a single Java VM J2EE
architecture?
Once the VM loads a class file (or a bunch-o-class files, aka, a jar) then
it can't
"unload" a class file can it? Thus doesn't the single VM have to go down
(resulting in a loss
of service)?
Also, if one redeploys, say a stateless session bean, that has been used,
then how does
it get evicted from memory, without a JVM shutdown? Can J2EE servers
redploy
with clients accessing the EJB being re-deployed, or do you have to kick out
the clients off
the system when you redeploy (forget 24x7x365)?
This is not necessariliy a request for or comments about WebLogic
information only, anyone with anything
to say about "hot redeployment" please chime in? OKAY?
-----Original Message-----
From: Cedric Beust [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 01, 2000 3:14 PM
To: [EMAIL PROTECTED]
Subject: Re: availability during redeployment of an EJB.
> From: A mailing list for Enterprise JavaBeans development
> [mailto:[EMAIL PROTECTED]]On Behalf Of T A Flores
> Weblogic supports that "Hot" deploy/re-deploy, however, you still have
> to make the appropriate entry in the properties file to keep the
> deployment in the event of server shutdown/re-start. I don't think the
> question was whether or not the deployment was persistent.
<vendor>
As I said in a previous message, this is no longer true in WebLogic 6.0. You
can redeploy a bean by copying its jar file in the applications/ directory
or
even by simply modifying its deployment descriptor.
</vendor>
--
Cedric
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