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Client-side fault tolerance in a publish-subscribe system

  • US 10,439,916 B2
  • Filed: 06/08/2017
  • Issued: 10/08/2019
  • Est. Priority Date: 03/05/2015
  • Status: Active Grant
First Claim
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1. A method for client-side fault-tolerance in a publish-subscribe system, the method comprising:

  • saving a last known content signature from a previous message when the previous message is received on a channel at a server;

    receiving, on the channel, a message from the server;

    determining, at a function executing using a processor and a memory, whether the message contains a heartbeat data, wherein the message includes a content signature;

    determining, responsive to the message containing the heartbeat data, whether a client is in sync with the server for a content published by the server by determining whether the content signature contained in the message matches the last known content signature; and

    sending, responsive to the content signature contained in the message not matching the last known content signature, a refresh message to the channel, the refresh message causing a response to an original request to be re-received on the channel.

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