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Posted to common-user@hadoop.apache.org by Steve Gao <st...@yahoo.com> on 2008/07/18 20:28:17 UTC

What is the difference between streaming options: -file and -CacheFile ?

Seems that they mean the same thing, right?
Another misleading options are : -NumReduceTasks and -jobconf mapred.reduce.tasks. Both are used to control (or give hit to) the number of reducers.