Department of Computer Science and Technology

Technical reports

ARC: Analysis of Raft Consensus

Heidi Howard

July 2014, 69 pages

This technical report is based on a dissertation submitted May 2014 by the author for the degree of Bachelor of Arts (Computer Science Tripos) to the University of Cambridge, Pembroke College.


The Paxos algorithm, despite being synonymous with distributed consensus for a decade, is famously difficult to reason about and implement due to its non-intuitive approach and underspecification. In response, this project implemented and evaluated a framework for constructing fault-tolerant applications, utilising the recently proposed Raft algorithm for distributed consensus. Constructing a simulation framework for our implementation enabled us to evaluate the protocol on everything from understandability and efficiency to correctness and performance in diverse network environments. We propose a range of optimisations to the protocol and released to the community a testbed for developing further optimisations and investigating optimal protocol parameters for real-world deployments.

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BibTeX record

  author =	 {Howard, Heidi},
  title = 	 {{ARC: Analysis of Raft Consensus}},
  year = 	 2014,
  month = 	 jul,
  url = 	 {},
  institution =  {University of Cambridge, Computer Laboratory},
  number = 	 {UCAM-CL-TR-857}