Re: [WDSCI-L] EAR/WAR Deployment

["Mark Phippard" <MarkP@xxxxxxxxxxxxxxx>]

Mike,

You can deploy fixes to WebSphere apps no problem.  Most fixes can just be 
deployed, some require you to stop and start the application and a few 
require you to stop and start the server.

If this link comes through here are the docs.  For each type of change you 
might be making, it tells you what you would have to restart.

http://publib.boulder.ibm.com/infocenter/wasinfo/index.jsp?topic=/com.ibm.websphere.base.doc/info/aes/ae/trun_app_hotupgrade.html

Mark







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07/06/2003 11:08 PM
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        Subject:        Re: [WDSCI-L] EAR/WAR Deployment



Joe,

Go ask Bob Cancilla what he thinks of the EAR/WAR concept.

;-)

Seriously, this stuff looks crazy to an old (at least in Internet years)
Net.Data/RPG guy.  No way to deploy a fix to a broken app without taking
down the server?  Well, now WAS-E running on a single node looks really
attractive -- as long as we never deploy an app with a bug in it.

We usually only deploy apps late at night, but every so often we do have 
to
put in a fix ASAP.  Now I have to take down the entire app server?  Ugh, I
can't wait.

Mike E.




> From: David Gibbs
>
> There are other tools available that are more robust than ANT ...
> but they aren't free.

"Tools"?  As in deployment tools?  Some sort of add-on tool that will
deploy
applications?  I don't understand how that would work with WAS.  The only
way I know to deploy to WAS is via an EAR file (or, to a limited degree,
with a WAR file).  There are no other tools, because the WAS folks insist
that they are following the "J2EE standard" and that's all they need to 
do.

Unfortunately, the more I look into it, the more I realize that J2EE isn't
really standard for business applications.  No concept of net change
deployment, no ability to hot install without bringing down the server, 
and
now I find that there's no way to run a post-installation script.

As far as I can tell, the J2EE deployment model is pretty much just a way
to
occasionally install a tool.  It certainly is no model for business
application deployment.

Joe





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