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

On 1/20/20 1:07 AM, 徐蕴 wrote:

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?

Did you reweight your OSDs prior to the upgrade? Otherwise it is probably the case that the reweights of the OSDs were set back to 1 causing this data migration. Or did somebody run: $ ceph osd crush tunables optimal Wido

br, Xu Yun _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io