[jira] [Updated] (MESOS-7937) Make framework count metrics constant time.

["Alexander Rukletsov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-7937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexander Rukletsov updated MESOS-7937:
---------------------------------------
    Labels: metrics observability performance  (was: )

> Make framework count metrics constant time.
> -------------------------------------------
>
>                 Key: MESOS-7937
>                 URL: https://issues.apache.org/jira/browse/MESOS-7937
>             Project: Mesos
>          Issue Type: Improvement
>          Components: master, statistics
>            Reporter: James Peach
>              Labels: metrics, observability, performance
>
> In the master metrics, various framework counters are implemented by a `Gauge` metric that `defers` to a linear scan of the frameworks (eg. MESOS-7747). This means that when we sample the metrics, there will be a N serialized loops over all the frameworks, so the cost of sampling master metrics will be very high for sites that have a large number of frameworks, and sampling the metrics will reduce master responsiveness.



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