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

Switch to Plain View
Hadoop >> mail # user >> Grouping comparator

Copy link to this message
Grouping comparator

Can someone please explain default implementation of grouping comparator i.e. if I do not specify a custom grouping comparator then which comparator is called to decide the grouping for reducer.
I searched a lot on web but could not find a satisfactory explanation for its default implementation.
Ajay Srivastava
Devaraj k 2012-06-04, 12:33