Description of problem: Currently offline splitting does not let you set the target level, this would be helpful to split the directories before the cluster needs to do it. Currently exists in Mimic, but not Luminous. https://github.com/ceph/ceph/pull/17666/commits/e71659b11a54ea3abdb047d2ec480bd855acee4a
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-2019:0020