anand76 add68bd28a Add a stat to count secondary cache hits (#8666) ... Summary: Add a stat for secondary cache hits. The ```Cache::Lookup``` API had an unused ```stats``` parameter. This PR uses that to pass the pointer to a ```Statistics``` object that ```LRUCache``` uses to record the stat. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8666 Test Plan: Update a unit test in lru_cache_test Reviewed By: zhichao-cao Differential Revision: D30353816 Pulled By: anand1976 fbshipit-source-id: 2046f78b460428877a26ffdd2bb914ae47dfbe77		2021-08-16 21:01:14 -07:00
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rocksdb	Add a stat to count secondary cache hits (#8666)	2021-08-16 21:01:14 -07:00