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Posted to common-user@hadoop.apache.org by Oleg Ruchovets <or...@gmail.com> on 2011/07/12 10:31:21 UTC

executing map/reduce and different file's format

Hi ,

    I have to run map/reduce job. Inputs to this job will be files with
different formats .
question:
       processing line from file , how can I check (know)  from which  file
this line was read?

Thanks in advance
Oleg.