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Aleksey Yeschenko commented on CASSANDRA-14628:
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Thanks, committed to 4.0 as
[6a473c4dbe31a64e6fcccdb6760347949d1d321a|https://github.com/apache/cassandra/commit/6a473c4dbe31a64e6fcccdb6760347949d1d321a].
> 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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