Distributed system, message processing method, nodes, client, and storage medium

A message processing method, comprising:

• sending, by processing circuitry of a client device with a digital signature, a message to be stored in nodes after the nodes reach a consensus on the message, the message including the digital signature of the client device;
• obtaining, by the processing circuitry of the client device, results from a subset of the nodes that receive the message, the results having respective digital signatures of the subset of the nodes, the nodes including a leader node and follower nodes and being in a first consensus mode for reaching the consensus on the message;
• after verifying the digital signatures of the subset of the nodes, determining, by the processing circuitry of the client device, based on the results, whether one or more of the nodes has malfunctioned;
• and
• based on the one or more of the nodes being determined to be malfunctioned,
• triggering, by the processing circuitry of the client device, the nodes to switch from the first consensus mode to a second consensus mode, the first consensus mode and the second consensus mode corresponding to different consensus algorithms;
• and
• determining, by the processing circuitry of the client device, a leader node from the nodes for the second consensus mode after the nodes are switched to the second consensus mode.

A non-transitory computer-readable storage medium storing a program executable by one or more processors of a client device with a digital signature to perform:

• sending a message to be stored in nodes after the nodes reach a consensus on the message, the message including the digital signature of the client device;
• obtaining results from a subset of the nodes that receive the message, the results having respective digital signatures of the subset of the nodes, the nodes including a leader node and follower nodes and being in a first consensus mode for reaching the consensus on the message;
• after verifying the digital signatures of the subset of the nodes, determining, based on the results, whether one or more of the nodes has malfunctioned;
• and
• based on the one or more of the nodes being determined to be malfunctioned,
• triggering the nodes to switch from the first consensus mode to a second consensus mode, the first consensus mode and the second consensus mode corresponding to different consensus algorithms;
• and
• determining a leader node from the nodes for the second consensus mode after the nodes are switched to the second consensus mode.