This covers the object map invalidation as described in BZ1249004. The issue is tracked via upstream Ceph ticket 12611. Writes beyond 64GB to an RBD image with object map enabled will result in an error attempting to update the object map on disk. This error will result in the object map being flagged as invalid.
Marking this BUG as verified as it worked fine even in RHEL Build. Version: ceph-0.94.1-17.el7cp I am not seeing any Error even with larger size rbd image ( Tested 5TB )
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2015:1881