[jira] [Updated] (KAFKA-10177) Replace/improve Percentiles metrics

["Sophie Blee-Goldman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-10177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sophie Blee-Goldman updated KAFKA-10177:
----------------------------------------
    Summary: Replace/improve Percentiles metrics  (was: Replace/improve/remove Percentiles metric)

> Replace/improve Percentiles metrics
> -----------------------------------
>
>                 Key: KAFKA-10177
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10177
>             Project: Kafka
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: Sophie Blee-Goldman
>            Priority: Major
>
> There's an existing – but unused – implementation of percentile metrics that we attempted to use for end-to-end latency metrics in Streams. Unfortunately a number of limitations became apparent, and we ultimately pulled the metrics from the 2.6 release pending further investigation/improvement.
> The problems we encountered were
>  # Need to set a static upper/lower limit for the values
>  # For reasonable accuracy over a large range of possible values (see above), a lot of memory per metric was required.
>  # Possible memory leak, which combined with issue #2 caused us to hit OOM and die
> Since the Percentiles class is part of the public API, we may need to create a new class altogether and possibly deprecate/remove the old one. Alternatively we can consider just re-implementing the existing class from scratch, and just deprecating the current constructors and associated implementation (eg the constructor accepts a max)



--
This message was sent by Atlassian Jira
(v8.3.4#803005)