A global snapshot collection algorithm with concurrent initiators with non-FIFO channel

  • Authors:
  • Diganta Goswami;Soumyadip Majumder

  • Affiliations:
  • Indian Institute of Technology Guwahati, Guwahati, Assam, India;Indian Institute of Technology Guwahati, Guwahati, Assam, India

  • Venue:
  • ICA3PP'11 Proceedings of the 11th international conference on Algorithms and architectures for parallel processing - Volume Part I
  • Year:
  • 2011

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Abstract

Taking a global snapshot in the absence of a global clock is a challenging issue in distributed system. The problem becomes more challenging when the communication channel is a non-FIFO one, due to the lack of FIFO properties in transmitting messages. Multiple initiators further complicate the situation. In this paper, we present a global snapshot collection algorithm with multiple initiators in the case of non-FIFO communication channel. We have shown that the algorithm can take a unique global consistent snapshot with non-FIFO channel, and terminates in O(mn2) message complexity where m is the number of concurrent initiators, and n is the number of processes in the system.