Designing Highly Available Multi-Cloud Database Architectures for Global Financial Services
DOI:
https://doi.org/10.15662/IJRAI.2023.0601008Keywords:
Multi-cloud architectures, High availability (HA), Geo-distributed replication, Active-active deploymentAbstract
Multi-cloud database is an emerging pattern of global financial institutions to address the need to have high availability, scalability, and regulation requirements. This paper analyzes performance and design of multi-cloud systems on the basis of active-active deployments, geo-distributed replication, cloud-agnostic data layers and automated failover systems. System availability, the latency, transaction throughput, security, compliance, and cost were measured in controlled experiments in simulated multi-cloud environments. Findings indicate that multi-cloud environments allow avoiding virtually zero downtimes, high success rates of transactions, and legal compliance and only generate slight performance overheads. The results bring into real life use a principled architecture of building resilient, fault tolerant database systems that are able to sustain the scale, reliability and security requirement of current financial services.
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