Achim: wow, cave sounds cool;
thank you for pointing out; Andrei. -------- Original Message -------- Subject: Re: karaf best practices: bundle hot swap? From: Achim Nierbeck <[email protected]> To: [email protected] Date: Thu 01 Dec 2011 01:52:26 AM CST > Hi Andrei, > > 2011/11/30 Andrei Pozolotin <[email protected] > <mailto:[email protected]>> > > Achim: > > -------- Original Message -------- > Subject: Re: karaf best practices: bundle hot swap? > From: Achim Nierbeck <[email protected]> > <mailto:[email protected]> > To: [email protected] <mailto:[email protected]> > Date: Wed 30 Nov 2011 12:02:35 PM CST >> Hi Andrei, > thanks for getting back > > >> >> what is your use-case for hot-swap? >> What do you mean by this? > my use case is > * highly available > * real time > * event processor > where I can update a bundle or a feature on the fly, > w/o downtime / delays; > > > > Another possibility is to use OBR while installing. You might also > consider using Cave, it could also help you with the updates, see [1] > for it. > > btw. OSGi is designed for the usecase of updating / upgrading your > bundles without down-times (or minimum down-times while upgrading) > > > >> >> If you want a hotdeployment - yes it's fileinstaller that does >> the job for the deploy folder >> if you want to update a bundle that is installed from a maven url >> for example, >> just do a update on the bundle Id in the shell and you'll be fine. >> If you're developing you have the command dev:watch id and it'l >> update your bundle as soon as it's >> installation source is updated (e.g. from a maven url) > great ideas; I will follow up; > >> >> Regards, Achim > I noticed you use this picture > http://en.wikipedia.org/wiki/Marvin_the_Paranoid_Android > for your logo > https://github.com/ANierbeck > here is one more karaf evaluation question: > is this because karaf is making you depressed? :-) > > > Not at all, just not being able to use it all the time makes me > depressed :-) > > > Regards, Achim > > [1] - http://blog.nanthrax.net/2011/08/apache-karaf-cave-preview/ > > > Cheers, > > Andrei > > >> >> 2011/11/30 Andrei Pozolotin <[email protected] >> <mailto:[email protected]>> >> >> Hello; >> >> so that I do not re invent the wheel, >> I hope there is a write up on the web somewhere, >> something like: >> >> "karaf best practices: bundle hot swap" >> >> to address questions like: >> * does file install / deploy work for this? >> * how about feature:install? >> * should I use external ssh/scp with file install? >> * should I use embedded ssh/scp with file install? >> * which approach properly handles bundle life cycle, >> update/refresh? >> * which approach properly handles osgi scr bind/unbind & >> activate/deactivate? >> * how do I test bundle hot swap in karaf properly? >> * etc. >> >> can you please share some pointers? >> >> Thank you, >> >> Andrei. >> >> >> >> >> -- >> >> Apache Karaf <http://karaf.apache.org/> Committer & PMC >> OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> >> Committer & Project Lead >> blog <http://notizblog.nierbeck.de/> > > > > > -- > > Apache Karaf <http://karaf.apache.org/> Committer & PMC > OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> > Committer & Project Lead > blog <http://notizblog.nierbeck.de/>
