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Automatic data replica manager in distributed caching and data processing systems

  • US 10,455,045 B2
  • Filed: 01/17/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 09/06/2016
  • Status: Active Grant
First Claim
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1. A method for enabling fault tolerance of a datacenter cluster caching system having one or more replica nodes in the same tier, the method comprising:

  • detecting a failure of the datacenter cluster;

    performing load balancing among nodes of the datacenter cluster in accordance with the detected failure by moving data among storage tiers of the nodes; and

    migrating replica data from a first replica node in the datacenter cluster to a second replica node in the datacenter cluster by;

    writing new incoming data on the second replica node; and

    maintaining unchanged cached data on the first replica node,wherein the load balancing is performed without pausing a subsystem corresponding to the detected failure, and without copying an entirety of a dataset of a node of the datacenter cluster corresponding to the detected failure.

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