Years ago I moved from a replicated pool to an EC pool, but with a downtime of the service (and at that time I didn't have too many data) Basically after having stopped the radosgw services, I created the new pool and moved the data from the old replicated pool to new EC one: ceph osd pool create cloudprod.rgw.buckets.data.new 32 32 erasure profile-4-2 rados cppool cloudprod.rgw.buckets.data cloudprod.rgw.buckets.data.new ceph osd pool rename cloudprod.rgw.buckets.data cloudprod.rgw.buckets.data.old ceph osd pool rename cloudprod.rgw.buckets.data.new cloudprod.rgw.buckets.data ceph osd pool application enable cloudprod.rgw.buckets.data rgw Eventually I deleted the replicated pool: ceph tell mon.\* injectargs '--mon-allow-pool-delete=true' ceph osd pool delete cloudprod.rgw.buckets.data.old cloudprod.rgw.buckets.data.old --yes-i-really-really-mean-it ceph tell mon.\* injectargs '--mon-allow-pool-delete=false' On Mon, Feb 13, 2023 at 4:43 PM Casey Bodley <cbodley@xxxxxxxxxx> wrote: > On Mon, Feb 13, 2023 at 4:31 AM Boris Behrens <bb@xxxxxxxxx> wrote: > > > > Hi Casey, > > > >> changes to the user's default placement target/storage class don't > >> apply to existing buckets, only newly-created ones. a bucket's default > >> placement target/storage class can't be changed after creation > > > > > > so I can easily update the placement rules for this user and can migrate > existing buckets one at a time. Very cool. Thanks > > > >> > >> you might add the EC pool as a new storage class in the existing > >> placement target, and use lifecycle transitions to move the objects. > >> but the bucket's default storage class would still be replicated, so > >> new uploads would go there unless the client adds a > >> x-amz-storage-class header to override it. if you want to change those > >> defaults, you'd need to create a new bucket and copy the objects over > > > > > > Can you link me to documentation. It might be the monday, but I do not > understand that totally. > > https://docs.ceph.com/en/octopus/radosgw/placement/#adding-a-storage-class > should cover the addition of a new storage class for your EC pool > > > > > Do you know how much more CPU/RAM EC takes, and when (putting, reading, > deleting objects, recovering OSD failure)? > > i don't have any data on that myself. maybe others on the list can share > theirs? > > > > > > > -- > > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im > groüen Saal. > _______________________________________________ > 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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