partitioner

Type Members

1. class CoLocationPartitioner extends Partitioner

   

   Will have the same parallism with last processor And each task in current processor will co-locate with task of last processor

2. class HashPartitioner extends Partitioner

   

   Only make sense when the message has implemented the hashCode() Otherwise, it will use Object.hashCode(), which will not return same hash code after serialization and deserialization.

3. trait Partitioner extends Serializable

   

4. class ShufflePartitioner extends Partitioner

   

   Round Robin partition the data.