What are Rados Gateway pools suffixed with '.extra' used for, in Red Hat Ceph Storage?

Solution Verified - Updated -

Issue

  • The Red Hat Ceph Storage RGW documentation talks about creating certain pools with the string .extra in their name (such as .rgw.buckets.extra) while setting up regions.

  • What are these pools used for and what is its significance?

  • After creating such pools, and writing data to the respective buckets, these pools (eg.. .rgw.buckets.extra) doesn't contain any objects, why?

Environment

  • Red Hat Ceph Storage 1.2.3

  • Red Hat Ceph Storage 1.3

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