Structured virtual synchrony: exploring the bounds of virtual synchronous group communication

  • Authors:
  • Katherine Guo;Werner Vogels;Robbert van Renesse

  • Affiliations:
  • Cornell University, Ithaca, NY;Cornell University, Ithaca, NY;Cornell University, Ithaca, NY

  • Venue:
  • EW 7 Proceedings of the 7th workshop on ACM SIGOPS European workshop: Systems support for worldwide applications
  • Year:
  • 1996

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Abstract

Multipoint communication protocols that offer group membership and virtually synchronous message delivery are commonly believed to be heavyweight and non-scalable. To meet the needs of large-scale computer-supported collaborative work, distributed parallel computing, and future worldwide applications, we designed the Structured Virtual Synchrony (SVS) protocol. The protocol has been implemented as part of Horus, a group communication system developed at Cornell University. It scales up to 800 members, while achieving a one-way latency of 100 milliseconds over groups of 500 members.