Zitan Chen 88db97b06d Add a DB Session ID (#6959) ... Summary: Added DB::GetDbSessionId by using the same format and machinery as DB::GetDbIdentity. The DB Session ID is generated (and therefore, updated) each time a DB object is opened. It is written to the LOG file right after the line of “DB SUMMARY”. A test for the uniqueness, for different openings and during the same opening, is also added. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6959 Test Plan: Passed make check Reviewed By: zhichao-cao Differential Revision: D21951721 Pulled By: gg814 fbshipit-source-id: 958a48a612db49a39998ea703cded45987d3fa8b		2020-06-15 10:47:02 -07:00
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rocksdb	Add a DB Session ID (#6959)	2020-06-15 10:47:02 -07:00