Hi, I am confused on a particular point about reducer. can anyone guide me about the same ?
When mapper starts generating key value pairs, will it all be available in reducer i.e. after all mappers have exited? I mean for a key K will all values be grouped and available in reducer. Or Will the reducer run on a single key-value pair as it becomes available ? Second option seems high unrealistic. Thanks, Parth -- View this message in context: http://old.nabble.com/Availability-of-values-in-a-key-in-Reduce-stage-tp27727136p27727136.html Sent from the Hadoop core-user mailing list archive at Nabble.com.
