Jul 27, 2015 · CET classifies as feasible those functions whose most efficient algorithms have time complexity \(c \cdot n^k\) for arbitrarily large scalar factors \(c\) and exponents \(k\). This means that if a function is only computable by an algorithm with time complexity \(2^{1000} \cdot n\) or \(n^{1000}\), it would still be classified as feasible.

Apache Spark is a great solution for such problems. But, first let's be clear about the definition of real time processing.It's the type of processing that must guarantee response within specified time which on an interactive business site is actually very low.