Megastore: structured storage for Big Data

Megastore is one of the building blocks of Google's data infrastructure. It has allowed storing and processing operations of huge volumes of data (Big Data) with high scalability, reliability and security. Companies and individuals using this technology benefit from a highly available and stable service. In this paper an analysis of Google's data infrastructure is made, starting with a review of the core components that have been developed in recent years until the implementation of Megastore. An analysis is also made of the most important technical aspects that this storage system has implemented to achieve its objectives.