#3140

Sanchita Sen
Participant

Difference between Old API and New API
Old API New API
1.JobConf(used by mapper class,reducer class, 1.JobClass(used for configuration by mapper,reducer)
input file)

2.It is present in org.apache.hadoop.mapred 2.It is present in org.apache.mapreduce

3.Works with Tool,Toolrunner 3.Does not work with such classes
4.Uses mapper and reducer as interface 4.Uses mapper and reducer as class

Prwatech