title: Is it possible to have multiple inputs with multiple different mappers in Hadoop MapReduce?
body: <p>Is it possible to have multiple inputs with multiple different mappers in Hadoop MapReduce? Each mapper class work on a different set of inputs, but they would all emit key-value pairs consumed by the same reducer. Note that I'm not talking about chaining mappers here, I'm talking about running different mappers in parallel, not sequentially.</p>