Elek, Marton created HDDS-793:
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Summary: Support custom key/value annotations on volume/bucket/key
Key: HDDS-793
URL: https://issues.apache.org/jira/browse/HDDS-793
Project: Hadoop Distributed Data Store
Issue Type: New Feature
Components: OM
Reporter: Elek, Marton
Assignee: Elek, Marton
I propose to add a custom Map<String,String> annotation field to
objects/buckets and keys in Ozone Manager.
It would enable to build any extended functionality on top of the OM's generic
interface. For example:
* Support tags in Ozone S3 gateway
(https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGETtagging.html)
* Support md5 based ETags in s3g
* Store s3 related authorization data (ACLs, policies) together with the
parent objects
As an optional feature (could be implemented later) the client can defined the
exposed annotations. For example s3g can defined which annotations should be
read from rocksdb on OM side and sent the the client (s3g)
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