Parallel chain consensus method and device and storage medium

Abstract

The invention provides a parallel chain consensus method and device and a storage medium, and the method comprises the steps: storing the parallel chain authorization account group information of theblock height of a block when the parallel chain consensus succeeds; generating a first consensus transaction according to the block execution result and the real-time parallel chain authorization account group information, sending the first consensus transaction to the main chain node so as to update the parallel chain authorization account group, and performing parallel chain consensus accordingto the updated parallel chain authorization account group; monitoring whether consensus of the parallel chain block succeeds or not before timeout; and if not, judging whether the number of the authorized accounts is reduced, if so, judging whether to resend the consensus transaction according to a preset rule, and if so, generating a second consensus transaction according to the third parallel chain authorized account group information and sending the second consensus transaction to the main chain node so as to update the parallel chain authorized account group and perform parallel chain consensus according to the updated parallel chain authorized account group. According to the invention, the normal operation of the parallel chain consensus when the authorized node account group is changed is ensured, and the waste of service fees is reduced.

Description

technical field [0001] This application relates to the technical field of blockchain, and specifically relates to a parachain consensus method, device and storage medium. Background technique [0002] In the parallel chain consensus mechanism proposed by the applicant, the parallel chain nodes synchronize the parallel chain transactions from the main chain to generate parallel chain blocks, and each authorized node of the parallel chain is packaged according to the execution results of the parallel chain blocks of the current node (respectively in Consensus transactions executed by the main chain and parallel chains and sent to the main chain nodes; [0003] The main chain nodes record each consensus transaction on the main chain for voting. If the pre-configured conditions are met (for example, more than 2 / 3 of the votes are consistent, etc.), the consensus of the parallel chain block is successful, so that the parallel chain can be completed with the help of the main chain...

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned parachain consensus mechanism, when some authorized nodes of the parachain do not normally carry out the parachain consensus, resulting in the failure of the parachain consensus to be completed normally, the authorized account group of the parachain needs to be reconfigured. The change of the authorized account group caused the problem that the parachain consensus could not be completed

For example, the first parachain is configured with 6 authorized nodes A-F. When the consensus transaction sent by the authorized nodes A-D for the block1 of the parachain is successfully recorded on the main chain, but the authorized nodes E and F cannot pay the full amount of handling fees, etc. When the consensus transaction is unsuccessfully sent, the parallel chain block block1 cannot achieve a successful consensus (4 / 6 does not exceed 2 / 3); when the first parallel chain passes any method such as super management account approval or authorized account voting, the original authorized node E and When F exits the authorized node account group, the main chain cannot learn the change of the authorized node account group of the first parachain (from A-F to A-D), resulting in the block1 of the parallel chain still unable to reach consensus

[0006] Furthermore, when the above-mentioned abnormality occurs in the parallel chain consensus, if each normal operation or newly joined authorized node sends a transaction to the main chain to trigger the parallel chain consensus, more handling fees will be wasted

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