Re: Accumulator and Accumulable vs classic MR

Only blocker is accumulator can be only "added" to from slaves & only read on the master. If that constraint fit you well you can fire away. Mayur Rustagi Ph: +1 (760) 203 3257 http://www.sigmoidanalytics.com @mayur_rustagi On Fri, Aug 1, 2014 at 7:38 AM, Jul

Accumulator and Accumulable vs classic MR

Hi, My question is simple: could it be some performance issue using Accumulable/Accumulator instead of method like map() reduce()... ? My use case : implementation of a clustering algorithm like k-means. At the begining I used two steps, one to asign data to cluster and another to calculate new c