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High-throughput state-machine replication using software transactional memory.

Wenbing Zhao1, William Yang2, Honglei Zhang3

  • 1Department of Electrical Engineering and Computer Science, Cleveland State University, Cleveland, OH 44115, USA.

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|October 28, 2017
PubMed
Summary
This summary is machine-generated.

State-machine replication uses software transactional memory for fault tolerance. This approach enables general-purpose concurrency control, improving system throughput without application-specific knowledge. Speculative timestamp-based multiversion concurrency control shows the best performance.

Keywords:
Multiversion concurrency controlOne-copy serializabilityOrdered strong strict two-phase lockingSoftware transactional memoryState-machine replication

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Area of Science:

  • Computer Science
  • Distributed Systems
  • Fault Tolerance

Background:

  • State-machine replication ensures fault tolerance by executing requests sequentially.
  • Sequential execution limits system throughput.
  • Application-specific concurrency control is complex and not reusable.

Purpose of the Study:

  • To adapt software transactional memory (STM) concurrency control for state-machine replication.
  • To develop general-purpose concurrency control mechanisms for fault-tolerant systems.
  • To improve system throughput in state-machine replication.

Main Methods:

  • Retrofitting existing STM concurrency control algorithms for state-machine replication.
  • Implementing and evaluating three mechanisms: ordered strong strict two-phase locking (S2PL), conventional multiversion concurrency control (MVCC), and speculative MVCC.
  • Conducting experiments across various workload types.

Main Results:

  • Speculative MVCC demonstrated superior performance across all workloads.
  • Conventional MVCC exhibited the worst performance due to high abort rates under contention.
  • Ordered S2PL provided a simple solution with excellent performance in low-contention scenarios and good performance in high-contention scenarios.

Conclusions:

  • STM offers a viable approach to enhance state-machine replication throughput.
  • General-purpose concurrency control for fault tolerance is achievable with STM.
  • Speculative MVCC is the most promising mechanism for high-performance fault-tolerant systems.