Hi Bertrand,
Maybe I missed something but I do not see agreement on a concrete plan
here so IMO the move is premature.
I had the feeling that there was an agreement that it is definitely good
to move the health checks to felix to make them available to a larger
audience, maybe there wasn't a clear agreement on how to do this exactly
yet, but I think we get closer to this.
1) How do we keep compatibility so that Sling users can use the Felix
HCs in the future...
There is a clear path on how to migrate (replace api dependency and
search and replace over java import statements replacing sling.hc.api
with felix.hc.api). The version as attached to FELIX-5952 fully supports
the HC API as well without having it as dependency (see [1] for details)
- this means that all health checks that exist out there work without
change. However the next release of sling.hc.api should deprecate it so
everyone that upgrades gets the messages to use the Felix API instead of
the Sling API (I created [2] for it).
... without ending up with two distinct projects each
with their own smaller fractured community
Deprecation of the Sling HC API and a clear migration path will not
fracture the community I believe... rather having the HC API in Felix
will allow all users/projects on the Felix platform to use it (e.g.
ServiceMix projects)
2) How can Sling committers maintain the module once it moves to
Felix, is the Felix PMC open to give us write access to it?
I think the Felix community is open to invite people for it [3]
3) What's the plan w.rt. merging with the systemready module
I agree with Christian here [4] that systemready can be implemented as
health check (once some minor improvements have been made to the current
API)
Before this is defined and agreed upon, I think a move is premature
and likely to end up with two distinct modules and communities.
I really want to avoid this as well!
-Georg
[1]
https://issues.apache.org/jira/browse/FELIX-5952?focusedCommentId=16643281&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16643281
[2] https://issues.apache.org/jira/browse/SLING-7980
[3]
https://lists.apache.org/thread.html/974b95a91e3d4f2e5ba3aec1f04a85eb2adf65d80e24ea78287284af@%3Cdev.felix.apache.org%3E
[4]
From
https://lists.apache.org/thread.html/2a10823b9e8304c175cd1c8724d8903b04d4a5640e3e5e85e97a2fc7@%3Cdev.felix.apache.org%3E
As sling hc is a lot more mature and battle proven I can imagine to
move to
this basic framework and change the system ready checks to this API.
