Hi, I'm guessing that the preferred method is the MR action; its certainly easier because you don't need to write your own driver class. Either way should be executed the same on the Hadoop cluster.
- Robert On Thu, Nov 1, 2012 at 9:39 AM, SingleTon <[email protected]> wrote: > Map Reduce job can be submitted using either MapReduce driver class > with java action OR mapreduce action with Mapper & Reducer. > Is there any difference between these two with respect to how the job > executed on Hadoop cluster? > Also. Which is a proffered method? > > I noticed when java action is used to run MapReduce driver class some of > the third party libraries were not available for Reduce tasks. > > Thanks, > BA >
