Reaching Optimal Interactive Consistency in a Fallible Cloud Computing Environment

Abstract

The cloud computing paradigm has revolutionized the way we access and utilize computational resources. However, the inherent complexity and distributed nature of cloud environments make them susceptible to various failures and inconsistencies. To address these challenges, ensuring interactive consistency among distributed replicas is crucial for maintaining data integrity and system reliability. This paper proposes a novel approach to achieve optimal interactive consistency in a fallible cloud computing environment. Our solution leverages a combination of Byzantine fault-tolerant (BFT) protocols and distributed ledger technology (DLT) to guarantee strong consistency guarantees even in the presence of malicious attacks and arbitrary node failures. We introduce a new consensus mechanism that dynamically adjusts its parameters based on the observed fault rate, optimizing both performance and security. Through extensive simulations and experimental evaluations, we demonstrate that our proposed approach significantly outperforms existing interactive consistency protocols in terms of latency, throughput, and fault tolerance. Furthermore, we analyze the scalability and overhead of our solution, showcasing its practical applicability in large-scale cloud deployments. This research contributes to the development of more resilient and trustworthy cloud computing systems, paving the way for enhanced data integrity and continuous service availability.