Rex: replication at the speed of multi-core

  title={Rex: replication at the speed of multi-core},
  author={Zhenyu Guo and Chuntao Hong and Mao Yang and Dong Zhou and Lidong Zhou and Li Zhuang},
Standard state-machine replication involves consensus on a sequence of totally ordered requests through, for example, the Paxos protocol. Such a sequential execution model is becoming outdated on prevalent multi-core servers. Highly concurrent executions on multi-core architectures introduce non-determinism related to thread scheduling and lock contentions, and fundamentally break the assumption in state-machine replication. This tension between concurrency and consistency is not inherent… CONTINUE READING
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