I believe there is no requirement to save both key and value for the OutputFormat, therefore, it is not guaranteed that you can extract (key,value) pair from a file generated by an arbitrary OutputFormat.
Zhu, Guojun Modeling Sr Graduate 571-3824370 [email protected] Financial Engineering Freddie Mac Pedro Costa <[email protected]> 03/30/2012 01:19 PM Please respond to [email protected] To mapreduce-user <[email protected]> cc Subject Read key and values from HDFS The ReduceTask can save the file using several output format: InternalFileOutputFormant, SequenceFileOutputFormat, TeraOuputFormat, etc... How can I read the keys and the values from the output file? Can anyone give me an example? Is there a way to create just one method that can read all different outputformat? Thanks, -- Best regards,
