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https://issues.apache.org/jira/browse/MAPREDUCE-2102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919986#action_12919986
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Luke Lu commented on MAPREDUCE-2102:
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Bytes read and written are already being collected. Additional io ops (made
available via HADOOP-6859) help diagnose performance problems of certain
applications.
I'm adding the support of file system counters in MAPREDUCE-901, which would
subsume this jira.
> Collect iops per task
> ---------------------
>
> Key: MAPREDUCE-2102
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2102
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: task
> Reporter: Arun C Murthy
> Fix For: 0.22.0
>
>
> We should enhance the MR framework to collect iops per task along with
> CPU/Memory (MAPREDUCE-220).
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