I'm not an expert, but I think I can tell you that yes, "hello world" applications can be upgraded without stopping, real applications can't.
As long as you use sessions or statics or you make config changes - you have to restart the webapp. OSGI is good of having 2 versions of a bundle running at the same time - but it won't help you much, the servlet engine needs to know where to send the requests, it has no clue a request should go to the old version or the new. Costin On Thu, Apr 24, 2008 at 5:17 PM, David Jencks <[EMAIL PROTECTED]> wrote: > > On Apr 22, 2008, at 6:25 PM, Paul Benedict wrote: > > > > Is that enough so that web applications, either as a whole or in partial, > > can be upgraded without stopping them? It's my understanding that if web > > applications are loaded in an OSGi classloader, these kind of things are > > possible. > > > > > I've heard various claims of this nature from osgi zealots, but when > talking to apparent experts the only things resembling this they seemed to > know about were grad student experiments that did not have production use as > even a far-in-the-future goal. Do you know of any actual examples of this > kind of behavior that actually work under load? > > thanks > david jencks > > > > > > > Paul > > > > On Tue, Apr 22, 2008 at 7:24 PM, Filip Hanik - Dev Lists > <[EMAIL PROTECTED]> > > wrote: > > > > > > > Henri Gomez wrote: > > > > > > > > > > Hi to all, > > > > > > > > Did there is plans, ideas or interest around about OSGI-fing Tomcat ? > > > > > > > > > > > > > > > I've put a note about this a while ago in tomcat/trunk/PROPOSALS.txt > > > my original plan was just to make sure all the MANIFEST.MF for each file > > > would have enough in it so that each JAR can be a OSGi bundle. > > > > > > after that, one can add on as much or as little as one wishes > > > > > > Filip > > > > > > > > > > Regards > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
