Big data analysis and query optimization improve HadoopDB performance

High performance and scalability are two essentials requirements for data analytics systems as the amount of data being collected, stored and processed continue to grow rapidly. In this paper, we propose a new approach based on HadoopDB. Our main goal is to improve HadoopDB performance by adding some components. To achieve this, we incorporate a fast and space-efficient data placement structure in MapReduce-based Warehouse systems and another SQL-to-MapReduce translator. We also replace the initial Database implemented in HadoopDB with other column oriented Database. In addition we add security mechanism to protect MapReduce processing integrity.