d75793d6b4
Summary: Add options to `db_stress` (correctness testing tool) to randomly acquire snapshot and release it after some period of time. It's useful for correctness testing of #3009, as well as other parts of compaction that behave differently depending on which snapshots are held. Closes https://github.com/facebook/rocksdb/pull/3038 Differential Revision: D6086501 Pulled By: ajkr fbshipit-source-id: 3ec0d8666c78ac507f1f808887c4ff759ba9b865