Squashed 'src/rocksdb/' content from commit 252ca97

git-subtree-dir: src/rocksdb
git-subtree-split: 252ca97778135e92f0aa050d077e6179776ccfa9
Merge commit '6637ee875f5958d87e3c290fef31d5ae4ba1eb01' as 'src/rocksdb'