On Mon, Jun 16, 2014 at 11:11 AM, Aaron Ten Clay <aaro...@aarontc.com> wrote: > I would also like to see Ceph get smarter about inconsistent PGs. If we > can't automate the repair, at least the "ceph pg repair" command should > figure out which copy is correct and use that, instead of overwriting all > OSDs with whatever the primary has. > > Is it impossible to get the expected CRC out of Ceph so I can detect which > object is correct, instead of looking at the contents or comparing copies > from multiple OSDs?
The CRCs are pretty unlikely to happen (for replicated pools) until there's kernel support for end-to-end data integrity. I imagine that our next step will be a vote-for-correctness system, but it needs to be designed and up until nowish there just haven't been enough people running the software and getting inconsistent PGs for it to be a pain point. -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
