Change of primary node in distributed system

摘要

The method of performing the primary node change in the blockchain network is that the backup node in the blockchain network determines that the epoch change needs to be performed, and is associated with each of the three phases of the consensus process at the current epoch. Determining the weight of each backup node, determining the sum of the weights for the backup node based on each weight, and applying the new primary node in a new epoch by sending an EPOCH_CHANGE message to another network node, Responding to receiving a NEW_EPOCH message from another network node, determining whether a number of valid NEW_EPOCH messages exceed a second predetermined threshold, and determining that the number of valid NEW_EPOCH messages exceeds a second predetermined threshold And determining the backup node to be the new primary node in the new epoch.