Hi All, I would like to perform a proof of concept on changing a running Ceph cluster which is using non-default erasure code plugin back to jerasure plugin on its default.rgw.buckets.data pool. I could not find a documentation on how to achieve this with minimal downtime. I know changing erasure code plugin and profile would require us to migrate the data inside the old pool to the new pool.
Is there a better way to change the erasure code plugin with minimal downtime as possible for Ceph RGW with hundred millions of objects? Since `rados cppool` is deprecated, I'm considering in using cache tier method as explained at https://ceph.com/geen-categorie/ceph-pool-migration/. Is cache tier method feasible? Kind regards, Charles Alva Sent from Gmail Mobile
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