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.
