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Recovery in a distributed stateful publish-subscribe system

  • US 20050268146A1
  • Filed: 05/14/2004
  • Published: 12/01/2005
  • Est. Priority Date: 05/14/2004
  • Status: Active Grant
First Claim
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1. A method for fault recovery in a stateful publish-subscribe system, the system including an overlay network for receiving a plurality of input messages and for applying at least one transform to the plurality of input messages to form at least one output message, the method comprising:

  • detecting missing information with respect to a message transmitted downstream through the overlay network from the plurality of input messages to the at least one output message;

    transmitting an inquiry message upstream through the overlay network toward the plurality of input messages to determine the missing information; and

    receiving and responding to the inquiry message by transmitting the determined missing information downstream through the overlay network.

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