Jeremy Hanna updated CASSANDRA-14628:
    Labels: virtual-tables  (was: )

> Clean up cache-related metrics
> ------------------------------
>                 Key: CASSANDRA-14628
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14628
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Minor
>              Labels: virtual-tables
>             Fix For: 4.0
> {{ChunkCache}} added {{CacheMissMetrics}} which is an almost exact duplicate 
> of pre-existing {{CacheMetrics}}. I believe it was done initially because the 
> authors thought there was no way to register hits with {{Caffeine}}, only 
> misses, but that's not quite true. All we need is to provide a 
> {{StatsCounter}} object when building the cache and update our metrics from 
> there.
> The patch removes the redundant code and streamlines chunk cache metrics to 
> use more idiomatic tracking.

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