Multi-cloud and Multi-data Stores - The Challenges Behind Heterogeneous Data Models
Marcos Aurélio Almeida da Silva, Andrey Sadovykh · 2014
The support to cloud enabled databases varies from one cloud provider to another. Developers face the task of supporting applications living in different clouds, and therefore of supporting different database management systems. To them, the challenge lies in understanding the differences in expressivity between different data stores and their impact on the application. The advent of the NoSQL movement increased the complexity of this task by leveraging the creation of a large number of cloud enabled database management systems employing slightly different data models. In this paper, we will present a model the will allow us to compare the differences in expressivity of the features supported by different databases and consider the impact of these features to different concrete deployment scenarios in multiple clouds. This model is based on the underlying data models adopted by the most used cloud database management systems. It has been developed on the FP7 XXX project and will be the basis of our approach for dealing with these issues.