Monday 15 February 2010

How to embedd a document in hadoop mongodb map reduce job output? -


I'm working on a map that works using a houp (with mongodibi), I have a key, Add value as output, and multiple column values ​​as output.

Is it possible to make documents embedded in output format in a document?

Normally I can get the output (I collect all the IDs in the map process, and in the reducer ADD attached to - .

  ----------------------- ---- Date ID ----------------- ---------- 2013-06-21 12-22-33 2013-06-22 34- 56-78-89 ------------------ -----------   

But the expected output is such that the ID should be as embedded in the embedded document (mongodibi style)

  --------------------------- Date ID --------------------- ------ 2013-06-21 0 - 12 1 - 22 2 - 33 2013-06-22 0 - 34 1 - 56 2 - 78 3 - 89 ------------- ----------------   

Thanks.

Yes, when you create BSONobage in your output, just as BSNObjects as N values ​​

something like

  BasicJohn Object output = new basicjon object (); Output.put ("2013-06-21", new BasicBoxone object ("0", 12));    

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