Patent ID: 8990434
Filing Date: 2015-03-24
Classification: G06F,H04L

Abstract:
1. In a federation infrastructure of a ring of nodes configured for bi-directional routing, a method for establishing and maintaining a consistent replica set within the federation infrastructure, the method comprising: an act of establishing a replica set from among a plurality of nodes in a ring of nodes, the replica set comprising as replica set members an existing primary node and one or more secondary nodes, each replica set member storing at least: an act of receiving an indication indicating an occurrence of a replica set configuration event affecting at least one of the replica set members; based on the received indication and based on a type of the replica set configuration event, an act of determining that the replica set is to be reconfigured, reconfiguration including: an act of reconfiguring the replica set according to a reconfiguration appropriate for the type of the replica set configuration event, including reconfiguring the replica set based on a comparison of the stored CSN and the stored LSN of at least one replica set member.