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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2102) Collect iops per task
Date Thu, 07 Oct 2010 05:28:33 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12918789#action_12918789
] 

dhruba borthakur commented on MAPREDUCE-2102:
---------------------------------------------

The map task typically reads an HDFS file ad writes to local disk. So, this should encompass
both reads and writes as well, isn't it?

also, maybe it is more interesting to collect bytes/sec  rather than IOPS. 

> 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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