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Posted to issues@kudu.apache.org by "Yingchun Lai (Jira)" <ji...@apache.org> on 2019/09/11 15:12:00 UTC

[jira] [Commented] (KUDU-2934) Bad merge behavior for some metrics

    [ https://issues.apache.org/jira/browse/KUDU-2934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16927644#comment-16927644 ] 

Yingchun Lai commented on KUDU-2934:
------------------------------------

For this kind of metric, maybe a percentile type metric is more resonable?

> Bad merge behavior for some metrics
> -----------------------------------
>
>                 Key: KUDU-2934
>                 URL: https://issues.apache.org/jira/browse/KUDU-2934
>             Project: Kudu
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 1.11.0
>            Reporter: Yingchun Lai
>            Priority: Minor
>
> We added a feature to merge metrics by commit fe6e5cc0c9c1573de174d1ce7838b449373ae36e ([metrics] Merge metrics by the same attribute), for AtomicGauge type metrics, we sum up of merged metrics, this work for almost all of metrics in Kudu.
> But I found a metric that could not be merged like this simply, i.e. "average_diskrowset_height", because it's a "average" value.



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