glassfish v3 and java EE in production mode: what are the options to update a live web app?

Posted by shadesco on Server Fault See other posts from Server Fault or by shadesco
Published on 2012-02-04T18:01:43Z Indexed on 2012/06/09 16:42 UTC
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glassfish

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production-environment

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j2ee

I am building a web app using java EE and glassfish v3. I want to move it to production mode soon, however i have zero experience with using glassfish in production, i would appreciate if you give me some guidance about how to approach the following scenario:

say i have deployed the web app using admin console pointing to the .war file. But what if i want to update this live application, do i need to :

a) undeploy --> build new war file (with updates) --> paste the war file to the app folder -->redeploy?

b) move in only the changed files , ie : .class files , jsp, etc... without undeploying before?

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