On 09/03/2018 10:07 PM, Nhat Ngo wrote:
Hi all,
I am new to Ceph and we are setting up a new RadosGW and Ceph storage
cluster on Luminous. We are using only EC for our `buckets.data` pool
at the moment.
However, I just read the Red Hat Ceph object Gateway for Production
article and it mentions an extra duplicated `buckets.non-ec` pool is
needed for multi-part uploads because each multi-upload parts must be
stored without EC. EC will only apply to the whole objects, not
partial uploads. Is this still hold true for Luminous?
The data layout document on Ceph does not make any mention of non-ec pool:
http://docs.ceph.com/docs/luminous/radosgw/layout/
Thanks,
*Nhat Ngo* | DevOps Engineer
Cloud Research Team, University of Melbourne, 3010, VIC
*Email: *nhat.ngo1@xxxxxxxxxxxxxx
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Hi Nhat,
The data extra pool is still necessary for multipart uploads, yes. This
extra non-ec pool is only used for the 'multipart metadata' object that
tracks which parts have been written, though - the object data for each
part is still written to the normal data pool, so it can take advantage
of erasure coding.
Casey
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