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https://issues.apache.org/jira/browse/HADOOP-10059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13815812#comment-13815812
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Luke Lu commented on HADOOP-10059:
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The .2 patch lgtm. +1.
> RPC authentication and authorization metrics overflow to negative values on
> busy clusters
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-10059
> URL: https://issues.apache.org/jira/browse/HADOOP-10059
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 0.23.9, 2.2.0
> Reporter: Jason Lowe
> Assignee: Tsuyoshi OZAWA
> Priority: Minor
> Attachments: HADOOP-10059.1.patch, HADOOP-10059.2.patch
>
>
> The RPC metrics for authorization and authentication successes can easily
> overflow to negative values on a busy cluster that has been up for a long
> time. We should consider providing 64-bit values for these counters.
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