Data consistency protocol for multicloud systems

Abstract

Using the resources of several cloud service providers (CSPs) to store, serve, and access user’s data can improve availability and reduce latency. However, the management of multicloud systems also poses an important challenge of how to guarantee that requests from any region to geo-distributed replicas of the database will content equivalent actual data, which is considered in this paper. The existing taxonomy of data consistency models allows choosing the required level of data consistency in cloud systems, however, the implementation of consistency protocols for multicloud systems requires a reasonable choice of middleware architecture and compromise decisions between response time and other constraints required by clients requirements. We propose consistency protocol based on the geo-distributed architecture of multicloud middleware to assign the ordering of numbers in a global sequence for incoming writing.