Sep 12, 2016 · new API allows both mappers and reducers to control the execution flow by overriding the run() method. Controlling mappers by writing aMapRunnable, but no equivalent …

Jul 9, 2015 · This article will make you understand about big Data and hadoop programming old and new API. Hadoop experts are going to differentiate between Old API and New API on the …

There are several obvious differences between the old and new APIs as follows: The new API tends to use virtual classes instead of interfaces because it is more advantageous for …

Apr 4, 2015 · • The new API favors abstract classes over interfaces, since these are easier to evolve. the Mapper and Reducer interfaces in the old API are abstract classes in the new API. …

There are several notable differences between the two APIs: The new API is in the org.apache.hadoop.mapreduce package (and subpackages). The old API can still be found in …

Feb 11, 2013 · There are two flavors of mapreduce APIs - old APIs (org.apache.hadoop.mapred) and new APIs (org.apache.hadoop.mapreduce). It's a bit of a long history but the current state …

Oct 16, 2014 · This tutorial point will provide the detailed explanation about hadoop and big data. This will help you to understand the thing very clearly.

Sep 29, 2011 · Functionality wise there is not much difference between the old (o.a.h.mapred) and the new (o.a.h.mapreduce) API. The only significant difference is that records are pushed …

In the new API, the reduce() method passes In the Old API, the reduce() method method values as a java.lang.Iterable passes values as a java.lang.Iterator passes values So This is the Main …

There are several obvious differences between new APIs and old APIs: 1. New APIs tend to be used Abstract class Instead of interfaces, because it is easier to expand. For example, you …