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https://issues.apache.org/jira/browse/MAPREDUCE-3678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J updated MAPREDUCE-3678:
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Attachment: MAPREDUCE-3678-branch-1.patch
Patch for branch-1.
> The Map tasks logs should have the value of input split it processed
> --------------------------------------------------------------------
>
> Key: MAPREDUCE-3678
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3678
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: nodemanager, tasktracker
> Affects Versions: 1.0.0, 2.0.0-alpha
> Reporter: Bejoy KS
> Assignee: Harsh J
> Attachments: MAPREDUCE-3678-branch-1.patch
>
>
> It would be easier to debug some corner in tasks if we knew what was the
> input split processed by that task. Map reduce task tracker log should
> accommodate the same. Also in the jobdetails web UI, the split also should be
> displayed along with the Split Locations.
> Sample as
> Input Split
> hdfs://myserver:9000/userdata/sampleapp/inputdir/file1.csv - <split
> no>/<offset from beginning of file>
> This would be much beneficial to nail down some data quality issues in large
> data volume processing.
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