hot deployment

Hi,

Is there a way to hot deploy java class changes in my local 7.6 development environment i.e. without doing a redeployment?

thanks,
Chinmay

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Mario_DAnna

You need to enable the VCM for debugging and attach your IDE to it:

1. Append this string to the startup params of the VCM server

-Djava.compiler=NONE -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,address=6065,suspend=n

and restart it. This will make the VCM "attachable" by a debugger

2. Configure your IDE for debugging. Your target must be a Remote JVM with Transport = Socket and Debugger Mode = Attach. The port used by the debugger must be the same you configured in the VCM server (in this example it is port 6065 - be aware that this is the port of the *debugger* not the port of the VCM server itself, so do not use port 27110)

3. Make sure that when you launch the debugger your IDe is able to "attach" the VCM

4. At this point when you compile a class in your IDE, the new class will be hot deployed to VCM (depending on the IDE you use you might need some extra setup) and it will be immediately available without the needs of doing any other deployment. Be aware that you can deploy any change unless you modify the signature of any method or you are adding/removing any class member.

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Subject: hot deployment

hot deployment

Posted by chinmay_khandelwal@newyorklife.com (Khandelwal, Chinmay) On 2011/03/08 14:59

Hi,Is there a way to hot deploy java class changes in my local 7.6 development environment i.e. without doing a redeployment?thanks,
Chinmay

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Forum:	Vignette V7 and V8 Web Content Management
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Paz_Jiménez_Alberto

I think that what Mario is describing here is hotSwap which is the possibility to modify a class definition while debugging. If you want to deploy new versions of your .class files to a running instance of Weblogic, I think that you can try the procedure described in the following thread (I have not tried it):

http://www.coderanch.com/t/67514/BEA-Weblogic/Hot-deploy-weblogic

If you want to learn more about the way hotSwap and Hotdeploy (or class reloading) works and it implications you can read the set of articles that starts with this:

http://www.zeroturnaround.com/blog/reloading-objects-classes-classloaders/

Note that this is a serie of articles from a vendor of a solution to streamline the development process by easing the deployment process, but the the description that they do about classloaders, class reloading and Hotswap are worth the reading of the articles.

Quoted Mario D'Anna (mdanna) on 2011/03/09 09:32:

You need to enable the VCM for debugging and attach your IDE to it:

1. Append this string to the startup params of the VCM server

-Djava.compiler=NONE -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,address=6065,suspend=n

and restart it. This will make the VCM "attachable" by a debugger

3. Make sure that when you launch the debugger your IDe is able to "attach" the VCM

hot deployment

Posted by chinmay_khandelwal@newyorklife.com (Khandelwal, Chinmay) On 2011/03/08 14:59

Hi, Is there a way to hot deploy java class changes in my local 7.6 development environment i.e. without doing a redeployment? thanks,
Chinmay

[To post a comment, use the normal reply function]
Forum:	Vignette V7 and V8 Web Content Management
Livelink Server:	knowledge-wlweb01

Chinmay_Khandelwal

Thanks to both of you.

Mario,

I had tried this with 7.3.1 couple oy years ago and it didn't work. Didn't hit me to try the same with 7.6 (newer JDK). It works! Thanks again.

Chinmay