On Sat, Apr 9, 2016 at 12:01 AM, Marcel Lauhoff <lauhoff@xxxxxxxxxxxx> wrote: > > Hi list, > short recap of the dedup topic from the CDM on Wednesday: > > > The main change from the original mail is not to add a PG backend, but > rather use Object Redirects (Tiering v2). > Another backend would have to implement its own replication for > recipes and increase the OSD code base just for dedup. Redirects are > useful beyond deduplication. > > > The CAS pool design was refined: An object class should handle the ref > counting and content addressing. The pool should also only > allow access through this object class to prevent collisions with > regular objects and support immutable objects. > > > There was also the idea of client-side deduplication by using metadata > that clients like RGW store. This would save the additional round trip > that object redirects add. Sounds good. > > > I'll be working on the CAS pool first, since there > is ongoing refactoring in the ReplicatedPG code base. I'll work out a > more detailed design document for the CAS pool soon. I will be able to test it against if you don't mind. > > > ~irq0 > -- > Marcel Lauhoff > Mail: lauhoff@xxxxxxxxxxxx > XMPP: mlauhoff@xxxxxxxxxxxxxxxxxxx > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html Cheers, Shinobu -- Email: shinobu@xxxxxxxxx GitHub: shinobu-x Blog: Life with Distributed Computational System based on OpenSource -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
