YKD Dyanamic Linear Voting

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YKD dynamic linear voting is a protocol created by Esti Yeger Lotem, Idit Keidar and Danny Dolev. It is designed to be adaptive, altering the minimum number of nodes needed for quorum after each partition of the cluster.

For example, if a 5-node cluster split into a partition of three nodes and of two nodes, the two nodes would lose quorum and the three nodes would be quorate. They would then shift down the minimum number of nodes needed to maintain quorum from three to two. In this way, a cluster can degrade further an have some members remain quorate.

See:

 

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