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Posted to mapreduce-user@hadoop.apache.org by Arun C Murthy <ac...@yahoo-inc.com> on 2010/01/09 00:31:34 UTC

Re: last call to map()

Moving to mapreduce-user@

Use the 'close' api.

Arun

On Jan 8, 2010, at 3:27 PM, Ted Yu wrote:

> Hi,
> My mapper calls remote client to retrieve certain result.
>
> I plan to introduce asynchronous client calls and buffer results in  
> mapper
> before calling output.collect().
>
> Is there a way to detect whether the current call to MapClass.map()  
> is the
> last one ?
>
> Thanks