Are you looking at "reduce input groups" or "reduce input records"?
Are you running a combiner?

On Tue, Aug 16, 2011 at 11:37 AM, Vyacheslav Zholudev
<vyacheslav.zholu...@gmail.com> wrote:
> Hi,
>
> I'm having multiple hadoop jobs that use the avro mapred API.
> Only in one of the jobs I have a visible mismatch between a number of map 
> output records and reducer input records.
>
> Does anybody encountered such a behavior? Can anybody think of possible 
> explanations of this phenomenon?
>
> Any pointers/thoughts are highly appreciated!
>
> Best,
> Vyacheslav

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