[jira] [Comment Edited] (MESOS-4760) Expose metrics and gauges for fetcher cache usage and hit rate

["Bernd Mathiske (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-4760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15256068#comment-15256068 ] 

Bernd Mathiske edited comment on MESOS-4760 at 4/25/16 8:28 AM:
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 [~mrbrowning], I am not aware of near-term plans for injection of the fetcher into the slave object. If you want to take this on, I am happy to shepherd it.


was (Author: bernd-mesos):
 [~mrbrowning], I am not aware of near-term plans for injection of the fetcher process into the slave object. If you want to take this on, I am happy to shepherd it.

> 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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