I fix a bunch of problems with blueprint shutting down recently, so could you try with a recent blueprint snapshot and see if that helps ? For now, blueprint bundles are shut down roughly according to their start level. THere's something in blueprint which is supposed to better use the bundle service usage and shutdown bundles so that the problem you see would not happen, however, this only happen when the blueprint extender itself is stopped, which in fact, does not really help because the extender has a very low start level and is thus stopped very late in the process. Something that could be improved in blueprint is reacting to the fact that a framework shutdown is initiated and do that orderly shutdown earlier in the process. In all cases, your bundles should be able to deal with cases where one dependency is missing and be able to shutdown cleanly anyway. So I would suggest you try with the latest blueprint snapshots and see if it helps. I can write a patch to see if the modification i suggested above would help (I think it should) if you want to give it a try.
On Wed, Jan 16, 2013 at 9:31 PM, Dan Tran <[email protected]> wrote: > Hi JB, > > I only try 2.3, my new work does not work with 2.2 > > what is osgi/karaf shutdown sequencing flow? like it would shutdown > all bundles with the same start- level in the order from high to low ? > > Thanks > > -D > > > On Wed, Jan 16, 2013 at 12:18 PM, Jean-Baptiste Onofré <[email protected]> > wrote: > > Hi Dan, > > > > did you try both with Karaf 2.2.x and 2.3.x ? > > did you see differences in the behavior ? > > > > Regards > > JB > > > > > > On 01/16/2013 09:17 PM, Dan Tran wrote: > >> > >> Hi I have a service's PreDestroy method which requires a service from > >> other bundle during shutdown. However at shutdown time, blueprint make > >> the required service 'unavailable'. Using start level ordering does > >> not seem to help. > >> > >> What are your experiences dealing with this issue? > >> > >> Big thanks ahead. > >> > >> -Dan > >> > > > > -- > > Jean-Baptiste Onofré > > [email protected] > > http://blog.nanthrax.net > > Talend - http://www.talend.com > -- ------------------------ Guillaume Nodet ------------------------ Blog: http://gnodet.blogspot.com/ ------------------------ FuseSource, Integration everywhere http://fusesource.com
