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From rab ra <rab...@gmail.com>
Subject Floatwritable and hadoop streming
Date Fri, 12 Sep 2014 09:22:08 GMT
Hello



In my use case, I need to build a single big sequence file. The key value
pairs are generated by map processes and a single reducer is used to
generate the sequence file. My value is a floatwritable (a list of float
values). I use hadoop streaming 2.4. i have a mapper that prints key value
pairs like this



println "${key}@${value}"



In my reducer, I need to collect them and append them into a sequence file.
However, in reducer, the input is a string and I do not know how to convert
'value' into floatWritable?



any clue here?



thanks
Rab

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