Ceph » mgr

we've encountered balancer crashes on one of our clusters. I wonder if it might be caused by filestore OSD, since it's crashing on it (ie osd.7 is for some reason filestore, while most of the others are bluestores)

backtrace:

Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: File "/usr/share/ceph/mgr/balancer/module.py", line 657, in serve
Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: r, detail = self.optimize(plan)
Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: File "/usr/share/ceph/mgr/balancer/module.py", line 928, in optimize
Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: return self.do_crush_compat(plan)
Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: File "/usr/share/ceph/mgr/balancer/module.py", line 1089, in do_crush_compat
Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: weight = best_ws[osd]
Feb 24 14:17:08 magpejv1a ceph-mgr²⁵⁸³: KeyError: 7

some time ago, I've reported similar problem which already got fixed: https://tracker.ceph.com/issues/42721