Method for view switching in a blockchain network
Implementations of the present solution disclose a method for triggering view switching in a blockchain without requiring a separate consensus to be executed by the backup nodes. The blockchain primary node receives a trigger that indicates a view switching condition. Then the primary node selects a successor node, and initiates a view switch, where the successor node will act as a new primary node in the next view. The new primary node can then initiate a consensus in the next view.
1. A computer-implemented method for performing view switching in a blockchain network, wherein the blockchain network comprises a primary node and a plurality of backup nodes, wherein the primary node initiates a consensus for a service request within the blockchain network, and wherein the service request is not for initiating a view switching, the method comprising:
receiving, by the blockchain primary node, a trigger of a view switching condition in a blockchain network, wherein the trigger indicates one of:
(a) receiving the service request, initiating the consensus for the service request, and determining a result of the consensus for the service request, or
(b) a failure to initiate the consensus for the service request within a predetermined time;
selecting, by the blockchain primary node, a successor node from the plurality of backup nodes based on the trigger of the view switching condition; and
switching, by the blockchain primary node based on the successor node, a current view to a next view that uses the successor node as a succeeding blockchain primary node, wherein the succeeding blockchain primary node initiates a consensus in the next view.
2. The computer-implemented method of claim 1 , wherein receiving the trigger of the view switching condition comprises:
receiving, by the blockchain primary node, a service request; and
determining that a consensus on the service request fails to be initiated within a predetermined time.
3. The computer-implemented method of claim 2 , wherein determining that the consensus on the service request fails to be initiated with the predetermined time comprises:
determining that data included in the service request is incorrect.
4. The computer-implemented method of claim 2 , wherein determining that the consensus on the service request fails to be initiated with the predetermined time comprises:
determining that the blockchain primary node sent an incorrect notification message indicating a consensus phase to the successor node.
5. The computer-implemented method of claim 1 , wherein selecting, by the blockchain primary node, the successor node comprises:
determining, by the blockchain primary node, a next view of the current view; and
selecting a successor node that corresponds to the next view.
6. The computer-implemented method of claim 5 , wherein switching the current view to the next view that uses the successor node as the succeeding blockchain primary node comprises:
switching the current view to the next view, wherein the successor node is used as a blockchain primary node in the next view.
7. The computer-implemented method of claim 1 , wherein the blockchain network comprises a consortium blockchain network or a private blockchain network.
8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations for performing view switching in a blockchain network, wherein the blockchain network comprises a primary node and a plurality of backup nodes, wherein the primary node initiates a consensus for a service request within the blockchain network, and wherein the service request is not for initiating a view switching, the method comprising:
receiving, by the blockchain primary node, a trigger of a view switching condition in a blockchain network, wherein the trigger indicates one of:
(a) receiving the service request, initiating the consensus for the service request, and determining a result of the consensus for the service request, or
(b) a failure to initiate the consensus for the service request within a predetermined time;
selecting, by the blockchain primary node, a successor node from the plurality of backup nodes based on the trigger of the view switching condition; and
switching, by the blockchain primary node based on the successor node, a current view to a next view that uses the successor node as a succeeding blockchain primary node, wherein the succeeding blockchain primary node initiates a consensus in the next view.
9. The computer-readable medium of claim 8 , wherein receiving the trigger of the view switching condition comprises:
receiving, by the blockchain primary node, a service request; and
determining that a consensus on the service request fails to be initiated within a predetermined time.
10. The computer-readable medium of claim 9 , wherein determining that the consensus on the service request fails to be initiated with the predetermined time comprises:
determining that data included in the service request is incorrect.
11. The computer-readable medium of claim 9 , wherein determining that the consensus on the service request fails to be initiated with the predetermined time comprises:
determining that the blockchain primary node sent an incorrect notification message indicating a consensus phase to the successor node.
12. The computer-readable medium of claim 8 , wherein selecting, by the blockchain primary node, the successor node comprises:
determining, by the blockchain primary node, a next view of the current view; and
selecting a successor node that corresponds to the next view.
13. The computer-readable medium of claim 12 wherein switching the current view to the next view that uses the successor node as the succeeding blockchain primary node comprises:
switching the current view to the next view, wherein the successor node is used as a blockchain primary node in the next view.
14. The computer-readable medium of claim 8 , wherein the blockchain network comprises a consortium blockchain network or a private blockchain network.
15. A computer-implemented system, comprising:
one or more computers; and
one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations for performing view switching in a blockchain network, wherein the blockchain network comprises a primary node and a plurality of backup nodes, wherein the primary node initiates a consensus for a service request within the blockchain network, and wherein the service request is not for initiating a view switching, the method comprising:
receiving, by the blockchain primary node, a trigger of a view switching condition in a blockchain network, wherein the trigger indicates one of:
(a) receiving the service request, initiating the consensus for the service request, and determining a result of the consensus for the service request, or
(b) a failure to initiate the consensus for the service request within a predetermined time;
selecting, by the blockchain primary node, a successor node from the plurality of backup nodes based on the trigger of the view switching condition; and
switching, by the blockchain primary node based on the successor node, a current view to a next view that uses the successor node as a succeeding blockchain primary node, wherein the succeeding blockchain primary node initiates a consensus in the next view.
16. The computer-implemented system of claim 15 , wherein receiving the trigger of the view switching condition comprises:
receiving, by the blockchain primary node, a service request; and
determining that a consensus on the service request fails to be initiated within a predetermined time.
17. The computer-implemented system of claim 16 , wherein determining that the consensus on the service request fails to be initiated with the predetermined time comprises: determining that the blockchain primary node sent an incorrect notification message indicating a consensus phase to the successor node.
18. The computer-implemented system of claim 16 , wherein determining that the consensus on the service request fails to be initiated with the predetermined time comprises:
determining that data included in the service request is incorrect.