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HDFS >> mail # dev >> Facing problem with Hadoop M/R Code setup

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Facing problem with Hadoop M/R Code setup
I am newbie to Hadoop M/R. My Problem is:

I have a file(.txt) in hdfs location which contains 5 lines. Each line
represents a hdfs location. Now, I want to read the lines inside Mapper
class and in the Reducer I want to actually work on those files and zip
them using some utility. The zip is the final product which I wish to have.

I had written a standalone code using Hadoop api. But I am out of wits
regarding scaling this program on top of MR.

Please help. Thanks in Advance