[ceph-users] Octopus: Recovery and backfilling causes OSDs to crash after upgrading from nautilus to octopus

Hi All, A customer of ours has upgraded the cluster from nautilus to octopus after experiencing issues with osds not being able to connect to each other, clients/mons/mgrs. The connectivity issues was related to the msgrV2 and require_osd_release setting not being set to nautilus. After fixing this the OSDs were restarted and all placement groups became active again. After unsetting the norecover and nobackfill flag some OSDs started crashing every few minutes. The OSD log, even with high debug settings, don't seem to reveal anything, it just stops logging mid log line. I've created a bug report: https://tracker.ceph.com/issues/46366 Has anyone experienced something similar? -- kind regards, Wout 42on