hi, all~! I have some questions. Please help me.
I want to know how to control map and reduce tasks manually. I mean I want to execute a map phase only, and then I want to execute a reduce phase. And is it possible to execute the map phase again using the same input data? That is, I want to use mapreduce system for task parallel computation. Finally, is there shared memory between mappers? If you know, please let me know. Thanks~! :) -- View this message in context: http://www.nabble.com/how-to-control-map-and-reduce-tasks-manually...--tf3899402.html#a11054462 Sent from the Hadoop Users mailing list archive at Nabble.com.
