Hi, yes you can rename a node without massive rebalancing. The following I tested with pacific. But I think this should work with older versions as well. You need to rename the node in the crushmap between shutting down the node with the old name and starting it with the new name. You only must keep the ID from the node in the crushmap! Regards Manuel On Mon, 13 Feb 2023 22:22:35 +0000 "Rice, Christian" <crice@pandora.com> wrote:
Can anyone please point me at a doc that explains the most efficient procedure to rename a ceph node WITHOUT causing a massive misplaced objects churn?
When my node came up with a new name, it properly joined the cluster and owned the OSDs, but the original node with no devices remained. I expect this affected the crush map such that a large qty of objects got reshuffled. I want no object movement, if possible.
BTW this old cluster is on luminous. ☹
_______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io