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

Switch to Threaded View
MapReduce, mail # user - Re: Differences between 'mapped' and 'mapreduce' packages


Copy link to this message
-
Re: Differences between 'mapped' and 'mapreduce' packages
Sandeep Dukkipati 2013-01-07, 19:58
I am a little new to the hadoop world. But based on my readings and
understanding thus far, there is not much functionality difference. Only
difference is new API allows you to implement push and pull mechanisms in
your map/reduce tasks as against push in old API. Mapper has been changed
to super class as against interface, so more functionality could be added
without affecting clients.

Please see,
http://stackoverflow.com/questions/7598422/is-it-better-to-use-the-mapred-or-the-mapreduce-package-to-create-a-hadoop-job
On Mon, Jan 7, 2013 at 10:14 AM, Oleg Zhurakousky <
[EMAIL PROTECTED]> wrote:

> What is the differences between the two?
> It seems like MR job could be configured using one of the other (e.g,
> "extends MapReduceBase implements Mapper" of "extends Mapper")
>
> Cheers
> Oleg