期刊
IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
卷 33, 期 9, 页码 2133-2147出版社
IEEE COMPUTER SOC
DOI: 10.1109/TPDS.2021.3135761
关键词
Parallel state machine replication; scheduling; dependability
资金
- CAPES -Print -PUCRS
- Swiss Nacional Science Foundation (SNSF)
State machine replication (SMR) is a fault-tolerant approach to provide high availability and strong consistency in services. To improve performance, two classes of protocols have been proposed, with each having its own advantages and disadvantages depending on the workload characteristics. To reconcile the advantages, a hybrid scheduling technique has been introduced, which demonstrated improved system performance by up to 3x compared to individual protocols in a workload with conflicting commands.
State machine replication (SMR) is a well-known approach to implementing fault-tolerant services, providing high availability and strong consistency. In classic SMR, commands are executed sequentially, in the same order by all replicas. To improve performance, two classes of protocols have been proposed to parallelize the execution of commands. Early scheduling protocols reduce scheduling overhead but introduce costly synchronization of worker threads; late scheduling protocols, instead, reduce the cost of thread synchronization but suffer from scheduling overhead. Depending on the characteristics of the workload, one class can outperform the other. We introduce a hybrid scheduling technique that builds on the existing protocols. An experimental evaluation has revealed that the hybrid approach not only inherits the advantages of each technique but also scales better than either one of them, improving the system performance by up to 3x in a workload with conflicting commands.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据