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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14628) Clean up cache-related metrics
Date Tue, 21 Aug 2018 10:56:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16587286#comment-16587286
] 

Benedict commented on CASSANDRA-14628:
--------------------------------------

Yep, even better.  +1

> 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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