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We have tested major datanode actions which requrie

S3 Gateway performance to be tested. Performance has been considered during development. For example, in order to for the client (S3 Gateway) to select the correct decryption key based on the actual user principal (S3 Gateway) and without introducing extra round trip, the user principal is piggy-backed in RpcClient#getS3Volume .

activities which require RocksDB operation, include container create & close & delete, and block put & get.  Except that container delete performance drops because container metadata KV need to be deleted from RocksDB, other four major activities all have performance improved. 


Image AddedOzone Java RPC client performance should not be affected.