existMapReduceIn the development framework,InputFormatWhat is the function of the class?
mergemapThe result of the stage has the samekeyvalue key-value pair
put allmapThe results of the stages are merged to get the final result
rightmapThe results of the stages are sorted, merged,
Split the input data into individualsplit, and willsplitfurther split intoright, then asmapinput to the function
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