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https://issues.apache.org/jira/browse/TEZ-3523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15642400#comment-15642400
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Zhiyuan Yang commented on TEZ-3523:
-----------------------------------
Per IO counters are not a specific kind of counter. It's separating all
relevant kinds of counters, including FileSystemCounters, by edges. It's
disabled by default and can be enabled using
'tez.task.generate.counters.per.io'.
> Per IO counters should use source edge name instead of source vertex name in
> counter names
> ------------------------------------------------------------------------------------------
>
> Key: TEZ-3523
> URL: https://issues.apache.org/jira/browse/TEZ-3523
> Project: Apache Tez
> Issue Type: Sub-task
> Reporter: Zhiyuan Yang
>
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