Hi Sage/Haomai, If I have a key/value backend that support transaction, range queries (and I don't need any explicit caching etc.) and I want to replace filestore (and leveldb omap) with that, which interface you recommend me to derive from , directly ObjectStore or KeyValueDB ? I have already integrated this backend by deriving from ObjectStore interfaces earlier (pre keyvalueinteface days) but not tested thoroughly enough to see what functionality is broken (Basic functionalities of RGW/RBD are working fine). Basically, I want to know what are the advantages (and disadvantages) of deriving it from the new key/value interfaces ? Also, what state is it in ? Is it feature complete and supporting all the ObjectStore interfaces like clone and all ?
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