Abstract: The explosion of data in volume, variety and velocity is catalyzing new business models and reshaping industries. Business leaders can no longer amble their way forward in the age of Big Data. The question that arises now is how to develop a high performance platform to efficiently analyze big data and how to design an appropriate mining algorithm to find the useful things from big data. To deeply discuss this issue, this paper begins with a brief introduction to big data, followed by issues of big data analytics, challenges of big data, and the various tools associated with it and further research directions will also be presented for the next step of big data analytics.

Keywords: Big data analytics, Hadoop, MapReduce, MOA.