This is done automatically. Every time the crush map changes, objects get moved around. Therefore, a typical procedure is - make sure ceph is HEALTH_OK - ceph osd set noout - ceph osd set norebalance - edit crush map - wait for peering to finish, all PGs must be active+clean - lots of PGs will also be re-mapped - ceph osd unset norebalance - ceph osd unset noout Before doing the last 2 steps, verify that no PGs are incomplete and no objects are degraded. Otherwise, fix first. Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 ________________________________________ From: Brett Randall <brett.randall@xxxxxxxxx> Sent: 09 June 2020 07:42:33 To: ceph-users@xxxxxxx Subject: Rebalancing after modifying CRUSH map Hi all We are looking at implementing Ceph/CephFS for a project. Over time, we may wish to add additional replicas to our cluster. If we modify a CRUSH map, is there a way of then requesting Ceph to re-evaluate the placement of objects across the cluster according to the modified CRUSH map? Brett _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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