Cheng Chang fd7d8dc56e Do not log unnecessary WAL obsoletion events (#7765)
Summary:
min_wal_number_to_keep should not be decreasing, if it does not increase, then there is no need to log the WAL obsoletions in MANIFEST since a previous one has been logged.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7765

Test Plan: watch existing tests and stress tests to pass

Reviewed By: pdillinger

Differential Revision: D25462542

Pulled By: cheng-chang

fbshipit-source-id: 0085fcb6edf5cf2b0fc32f9932a7566f508768ff
2020-12-10 12:55:49 -08:00
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