[ http://issues.apache.org/jira/browse/HADOOP-261?page=all ]
Owen O'Malley updated HADOOP-261:
---------------------------------
Attachment: map-out-lost.patch
This patch adds a diagnostic message to the task to explain why it move from
success to failed when a map output file can not be read.
> when map outputs are lost, nothing is shown in the webapp about why the map
> task failed
> ---------------------------------------------------------------------------------------
>
> Key: HADOOP-261
> URL: http://issues.apache.org/jira/browse/HADOOP-261
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.2.1
> Reporter: Owen O'Malley
> Assigned To: Owen O'Malley
> Attachments: map-out-lost.patch
>
>
> When a task tracker invokes mapOutputLost, it does not include a diagnostic
> that lets the user (or the web app) know what failed in the map. I want to
> add a diagnostic message.
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