Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> Merge Reducers Outputs

Copy link to this message
Re: Merge Reducers Outputs
On 07/26/2011 06:52 PM, Mohamed Riadh Trad wrote:
> Dear All,
> Is it possible to set up a task with multiple reducers and merge reducers outputs into one single file?
> Bests,
> Trad Mohamed Riadh, M.Sc, Ing.

Not within the map-reduce job, but you can merge it after the job is
done.  At my previous company we used FileUtil.copyMerge() to do this,
and it worked quite well.