Summary: Enable WritePrepared policy for existing transaction tests. Closes https://github.com/facebook/rocksdb/pull/2972 Differential Revision: D5993614 Pulled By: maysamyabandeh fbshipit-source-id: d1eb53e2920c4e2a56434bb001231c98426f3509
Summary: Recover txns from the WAL. Also added some unit tests. Closes https://github.com/facebook/rocksdb/pull/2901 Differential Revision: D5859596 Pulled By: maysamyabandeh fbshipit-source-id: 6424967b231388093b4effffe0a3b1b7ec8caeb0
Summary: Closes https://github.com/facebook/rocksdb/pull/2798 Differential Revision: D5724173 Pulled By: maysamyabandeh fbshipit-source-id: fb6b782d933fb4be315b1a231a6a67a66fdc9c96