Improving the Availability of NoSQL Databases for Cloud Storage

Abstract

Data storage management plays a vital role in cloud computing environment. The researchers are still trying to make the cloud data storage system to be more mature. And there are two major requirements of datastores in cloud computing environment: (1) high until almost ultimate scalability and (2) low administration overhead. As a result, scalable, distributed databases to store peta bytes of data becomes a necessity. In this case, NoSQL databases are the most suitable solutions for cloud computing. Three properties of distributed databases that are commonly desired are: CAP (consistency, availability, partition tolerance). It would be ideal if distributed databases can deliver all three guarantees. However, providing all three attributes in NoSQL is still a challenge.This paper intends to examine how NoSQL works and to improve the availability ,by using replication mechanism and latency reducing mechanism, in NoSQL databases that are suitable for cloud computing environment.