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

Switch to Threaded View
MapReduce, mail # user - hadoop task assigner


Copy link to this message
-
hadoop task assigner
Jay Vyas 2012-12-07, 16:28
Hi : Where are the hooks in hadoop for the implementation of locality?  I
assume that Mappers are blind to locality - they read directly via their
Context objects, whatever splits they are given.

But the MapperContext is created by some kind of "smart", locality aware
Task assignment class.

What is this class and where is it? In particular, im interested in seeing
how to implement it for different InputFormat mechanisms

Thanks!!!!!!!!!!!!!

--
Jay Vyas
http://jayunit100.blogspot.com