Custom Partitioner / Combiner In hadoop

Hadoop Provides support for defining Custom Partitioner & Combiner for writing mapreduce jobs. The use case of Combiner & Partitioner is different. Below are some useful information regarding partitioner & Combiner. – The partitioning phase takes place after the map phase and before the reduce phase. – The number of partitions is equal to the … More Custom Partitioner / Combiner In hadoop