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https://issues.apache.org/jira/browse/MESOS-4760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15514695#comment-15514695
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Michael Browning commented on MESOS-4760:
-----------------------------------------

[~greggomann], no problem, I discarded the request. Unassigning myself from 
this for now.

> Expose metrics and gauges for fetcher cache usage and hit rate
> --------------------------------------------------------------
>
>                 Key: MESOS-4760
>                 URL: https://issues.apache.org/jira/browse/MESOS-4760
>             Project: Mesos
>          Issue Type: Improvement
>          Components: fetcher, statistics
>            Reporter: Michael Browning
>            Assignee: Michael Browning
>            Priority: Minor
>              Labels: features, fetcher, statistics, uber
>
> To evaluate the fetcher cache and calibrate the value of the 
> fetcher_cache_size flag, it would be useful to have metrics and gauges on 
> agents that expose operational statistics like cache hit rate, occupied cache 
> size, and time spent downloading resources that were not present.



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