D-Paxos: Building Hierarchical Replicated State Machine for Cloud Environments

Abstract

SUMMARYWe present a hierarchical replicated state machine (H-RSM) and its corresponding consensus protocol D-Paxos for replication across multiple data centers in the cloud. Our H-RSM is based on the idea of parallel processing and aims to improve resource utilization. We detail D-Paxos and theoretically prove that D-Paxos implements an H-RSM. With batching and logical pipelining, D-Paxos efficiently utilizes the idle time caused by high-latency message transmission in a wide-area network and available bandwidth in a local-area network. Experiments show that D-Paxos provides higher throughput and better scalability than other Paxos variants for replication across multiple data centers. To predict the optimal batch sizes when D-Paxos reaches its maximum throughput, an analytical model is developed theoretically and validated experimentally.

Research on the Realization Model of Accounting Information Sharing

“…The resource integration layer is responsible for the integration of resources of accounting information. Mainly collecting and integrating enterprise financial report information [8] . The accounting information of enterprises is submitted to the county-level finance department, which integrates the accounting information of counties, cities, and provinces step by step, and migrates to a virtualized environment to form a "provincial-level accounting information cloud".…”