MapReduce
This framework helps in processing and scaling of servers in a Hadoop cluster. It works in-parallel separating out the data sets into independent portions. Once the sorting of the output of the maps are done, they taken in the reduced tasks.
Web access log stats, machine learning and statistical machine translation make use of this programming model. Professionals with this skill earn up to $ 127, 315 on an average.
Cassandra
Designed for the purpose of storage and management of heaps of data, this open-source distributed database system manages commodity servers. It consists of peer-to-peer nodes and automatically separates the data clusters into these nodes.
Real-time enterprise database requiring scalability and frequent availability work under this design without failures. The average salary of Cassandra efficient is $ 128, 646.
PaaS
This cloud model is used to deliver apps by providers and act as a host for the hardware and software. It runs apps without disturbing the hardware and software of the organization.
PaaS aids in developing applications and services over the internet by presenting a platform.
A large number of Big Data applications are build on PaaS cloud model. PaaS efficient earns $ 130,081 on an average.
Read More: 'Workplace' Does It Just Belong To Men?
10 Amazing Offices That You Will Never Want To Leave