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https://issues.apache.org/jira/browse/HADOOP-10688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14030036#comment-14030036
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Sandy Ryza commented on HADOOP-10688:
-------------------------------------
StatisticsData is used internally in some places not per-thread. We could have
a ThreadStatisticsData that we expose that wraps it, but I think that would
kind of be overkill. Updated patch changes "getThreadData" to
"getThreadStatistics" to be a little more clear.
> Expose thread-level FileSystem StatisticsData
> ---------------------------------------------
>
> Key: HADOOP-10688
> URL: https://issues.apache.org/jira/browse/HADOOP-10688
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Attachments: HADOOP-10688.patch
>
>
> FileSystems collect data on the bytes read and written by each thread. It
> would be helpful for it to make this data public.
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