[ http://issues.apache.org/jira/browse/HADOOP-262?page=all ]
Mahadev konar updated HADOOP-262:
---------------------------------
Attachment: reduce_sleep.patch
here is a patch that reports progress while its sleeping and waiting for more
map outputs.
> the reduce tasks do not report progress if they the map output locations is
> empty.
> ----------------------------------------------------------------------------------
>
> Key: HADOOP-262
> URL: http://issues.apache.org/jira/browse/HADOOP-262
> Project: Hadoop
> Type: Bug
> Components: mapred
> Reporter: Mahadev konar
> Assignee: Mahadev konar
> Attachments: reduce_sleep.patch
>
> The ReduceTaskRunner should report progress even if the number of ouput
> locations to copy is empty. In case, the last few maps are running on a
> tasktracker that goes down, all the reduce tasks waiting for these mapoutputs
> would fail.
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