MapReduce updates the task's configuration and sets 'map.input.file' to point 
to the file on which the task intends to work on. In the new MapReduce API, its 
renamed to 'mapreduce.map.input.file'. You can print the value corresponding to 
'map.input.file'. Similarly 'map.input.start'  point to the start offset in the 
input file while 'map.input.length' points to the total size of the data to be 
read.
Amar


On 5/10/11 9:05 PM, "Jonathan Coveney" <[email protected]> wrote:

I have a basic job that is dying, I think, on one badly compressed file. Is 
there a way to see what file it is choking on? Via the job tracker I can find 
the mapper that is dying but I cannot find a record of the file that it died on.

Thank you for your help

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