Yanqin Jin d42bd041c5 Improve visibility into the reasons for compaction. ... Summary: Add `compaction_reason` as part of event log for event `compaction started`. Add counters for each `CompactionReason`. Closes https://github.com/facebook/rocksdb/pull/3679 Differential Revision: D7550348 Pulled By: riversand963 fbshipit-source-id: a19cff3a678c785aa5ef41aac78b9a5968fcc34d		2018-04-11 10:58:44 -07:00
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rocksdb	Improve visibility into the reasons for compaction.	2018-04-11 10:58:44 -07:00