[ceph-users] Upgrade from Jewel to Luminous resulted 82% misplacement

Hi, We upgraded our cluster from Jewel to Luminous, and it turned out that more than 80% object misplaced. Since our cluster has 130T data, backfilling seems take forever. We didn’t modify any crushmap. Any thoughts about this issue? br, Xu Yun ___

[ceph-users] backfill / recover logic (OSD included as selection criterion)

Hi, Is there any logic / filtering which PGs to backfill at any given time that takes into account the OSD the PG is living on? Our cluster is backfilling a complete pool now (512 PGs) and (currently) of the 7 active+remapped+backfilling there are 4 of them on the same OSD. Which stresses this