Summary:
Signed-off-by: Ntang.jin <tang.jin@istuary.com>
Closes https://github.com/facebook/rocksdb/pull/2644

Differential Revision: D5600861

Pulled By: yiwu-arbug

fbshipit-source-id: 9516636cb6e77b09fe0ebef78953adf4b7e88cc8