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<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
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Thoughts on hot deployment
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reply from <a href="http://community.jboss.org/people/jason.greene%40jboss.com">Jason Greene</a> in <i>JBoss AS7 Development</i> - <a href="http://community.jboss.org/message/559865#559865">View the full discussion</a>
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<div class="jive-rendered-content"><blockquote class="jive-quote"><blockquote class="jive-quote"><p>Brian meant a different file, and they shouldn't necessarily be poking in the data area, which I admit is not intuitive. That's a very good point. It's also  inconsistent with the exploded dir, which preserves the original. We could alternatively leave the file there and just add the .deployed as an indicator that it was deployed. The only side effect is that it would require a copy vs a move, but IMO not a huge deal for zips.</p></blockquote><p>If you leave the original archive in place, I think there is little point having a marker file there hanging. Logs/console/cli should tell you if a deployment was successfull or not and for index purposes or otherwise you can always keep state somewhere else, outside the users view.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Unless you want to have archives in ./deploy and not wanting them to deploy? (but then why have them there in first place)</p></blockquote><p>Yes the state could be stored elsewhere, basically a timestamp and file size should be sufficient to determine if the file has indeed changed.<span style="font-family: 'Lucida Grande', Arial, Helvetica, sans-serif;"> It's only value with the copy approach is to provide a quick indication that something is currently deployed.</span></p><blockquote class="jive-quote"><p>Now, regarding exploded deployments, why not using the containing directory to be the marker itself? "Touching" the upper level directory conceptually is similar to touching a zipped archive. Although it's not so straightforward to do on Windoze.</p></blockquote><p>That still doesnt solve the undeploy problem, where the content will disappear out from under the classloader and cause frameworks like seam to fail. It also doesn't help the problem where atomic moves aren't possible for one reason or the other. </p></div>
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