RGW and RADOS

Steve Jones edited this page Sep 28, 2017 · 2 revisions

This wiki is 's notes of Ceph RGW architecture from the following tech talk. This is an artifact of EUCA-11612, understanding the mapping between RGW and RADOS

RADOS features utilized by higher layer applications

RADOS feature Application
Partial overwrite RBD
Extended attributes RGW uses extended attributes for frequently accessed metadata such as S3 user metadata
Omap key value pair RGW uses omap for object listing also known as bucket index featureObject map/omap is ordered key value mapping associated with a RADOS object. It is stored in level db instance of the OSD
Atomic read/write

category.storage category.confluence category.objectstorage

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