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From Aaron McCurry <>
Subject Re: Reducer to outputformat
Date Mon, 20 May 2013 13:14:07 GMT
You could write your own reducer in the new paradigm and the documents
within a row are ordered by record id.  So the first one in could be your
primedoc document.  If that's what you are after.

Although  I think a better approach would be to implement a secondary sort
in hadoop to enforce the record id ordering in mapreduce so you don't have
to buffer the whole row.  I could implement that in the mapreduce lib in
Blur, just create an issue and I will give it a try.


On Mon, May 20, 2013 at 8:37 AM, Tim Williams <> wrote:

> In the move to outputformat, I don't see how we get our "last chance"
> to fiddle with the indexed docs like we do today with the reducer
> approach (e.g. documentsToIndex(..)   Is that right?  My current usage
> of documentsToIndex is likely flawed in the new "temporary index"
> paradigm anyway because I kinda depend on them being buffered, so i
> reckon I'd have to come up with something different anyway...
> --tim

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