Hadoop Designers entered the market first before there were any Flash Engineers. Both, in any case, do comparable sorts of data handling work. In numerous ways, Hadoop engineers laid the basis for future information science designers. To comprehend the reason why the capacity to handle enormous amounts of data through Hadoop MapReduce was a major forward leap, think about one commonsense model. A clinic gathers data on its patients. Some place in those a large number of terabytes of all out records are a few experiences on the clinic\s activities that could upgrade the wellbeing and survivability of its patients.