Thanks for the update guys.
We are going to look for a way to handle configurations in an OSGi way
without changing the API/dependency.
Regards
JB
On 07/09/2012 08:30 PM, Owen O'Malley wrote:
Changing the configurations is a big and very touchy job. It is touchy in
that it is very exposed to
Changing the configurations is a big and very touchy job. It is touchy in
that it is very exposed to the users and many many applications assume the
configuration is dealt with in particular ways. It is a requirement to
maintain compatibility and thus that needs to be factored in to the work.
Furth
Guillaume,
The problem with Configuration is that it is public, so changing it does
not just impact Hadoop. It also impacts all of the projects that use it,
either directly as part of the Map/Reduce APIs or for storing their own
configuration. Within Hadoop proper there are several places where
Right, that would surely be incompatible. The initial work I did was on
1.0.3 and those problems can be solved in a more simple (though less clean)
way in that branch, mainly because of the fact that there is a single jar
which contain everything, so that causes less problems in OSGi.
For trunk,
Hi Bobby,
Guillaume and I are working on trunk. So it makes sense to focus on
trunk for this kind of refactoring. We are working on a fork branch on
github. We can choose when merge our changes to trunk (or a dedicated
branch).
Regards
JB
On 07/09/2012 04:37 PM, Robert Evans wrote:
Guillau
Guillaume,
I am not super familiar with OSGi. I have used it a little in the past,
but that was 5+ years ago. I am in favor of something that will fix the
CLASSPATH problems that we currently have and would allow for CLASSPATH
isolation between Hadoop itself and the applications that use Hadoop.
I'm working with Jean-Baptiste to make hadoop work in OSGi.
OSGi works with classloader in a very specific way which leads to several
problems with hadoop.
Let me quickly explain how OSGi works. In OSGi, you deploy bundles, which
are jars with additional OSGi metadata. This metadata is used by t
