How can I transform the mapper key at the reducer output. The functions I have encountered are combineByKey, reduceByKey, etc that work on the values and not on the key. For example below, this is what I want to achieve but seems like I can only have K1 and not K2:
Mapper----->(K1,V1)----->Reducer----->(K2,V2) I must be missing something. Is there a class/method available? Also I am using the Java API -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Have-different-reduce-key-than-mapper-key-tp10503.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
