RADOS import/export? Will look into that. I ended up going with Paul's suggestion, and created a separate zone under the main zonegroup with another RGW instance running that zone, and had it sync the data into the Erasure-Coded zone. Made it very easy to do!

Thanks,

Mac

On Wed, Oct 30, 2019 at 12:46 AM Konstantin Shalygin <k0ste@k0ste.ru> wrote:

On 10/29/19 1:40 AM, Mac Wynkoop wrote:
> So, I'm in the process of trying to migrate our rgw.buckets.data pool
> from a replicated rule pool to an erasure coded pool. I've gotten the
> EC pool set up, good EC profile and crush ruleset, pool created
> successfully, but when I go to "rados cppool xxx.rgw.buckets.data
> xxx.rgw.buckets.data.new", I get this error after it transfers 4GB of
> data:
>
> error copying object: (2) No such file or directory
> error copying pool xxx.rgw.buckets.data => xxx.rgw.buckets.data.new:
> (2) No such file or directory
>
> Is "rados cppool" still the blessed way to do the migration, or has
> something better/not deprecated been developed that I can use?

rados cppool AFAIK lack of support of copy from replicated to EC. May be
now is wrong.

Also you can use rados import/export.

k