Throttling backfill and recovery

Updated -

When you add or remove Ceph OSD Daemons to a cluster, the CRUSH algorithm will want to rebalance the cluster by moving placement groups to or from Ceph OSD Daemons to restore the balance. The process of migrating placement groups and the objects they contain can reduce the cluster’s operational performance considerably. To maintain operational performance, Ceph performs this migration with ...

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