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Posted to common-issues@hadoop.apache.org by "Shuyan Zhang (Jira)" <ji...@apache.org> on 2022/08/26 15:42:00 UTC

[jira] [Assigned] (HADOOP-18426) Improve the accuracy of MutableStat mean

     [ https://issues.apache.org/jira/browse/HADOOP-18426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shuyan Zhang reassigned HADOOP-18426:
-------------------------------------

    Assignee: Shuyan Zhang

> Improve the accuracy of MutableStat mean
> ----------------------------------------
>
>                 Key: HADOOP-18426
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18426
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Shuyan Zhang
>            Assignee: Shuyan Zhang
>            Priority: Major
>              Labels: pull-request-available
>
> The current MutableStat mean calculation method is more prone to loss accuracy because the sum of samples is too large. We can process each sample on its own to improve mean accuracy.



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