Paxos example updating method, device and system
A technology of instance update and equipment, applied in the field of distributed computing, can solve the problems of low execution efficiency of Paxos algorithm, achieve the effect of solving low execution efficiency, simplifying the execution process, and improving execution efficiency
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example I
[0038]Wherein, the status information of the current scheme may include: the instance ID, value and serial number of the approved paxos instance under the current scheme;
[0039] Step 102: The proposal node obtains the instance ID of the paxos instance to be updated according to the state information of the current plan, and executes the approval process of the paxos instance to be updated with the instance ID and the serial number determined in the preparation process, so as to realize the Need to update the update of the paxos instance.
[0040] In the method provided by the embodiment of the present invention, the proposal node directly starts the preparation process after receiving the update request from the client, that is, calculates the serial number and sends a preparation request to all approval nodes with the serial number. After the preparation request, no matter whether the preparation request is accepted or not, a reply will be returned to the proposal node. The...
example ID1
[0054] Step 205: The proposal node extracts the state information of the current plan from the response, and obtains the instance ID1 of the paxos instance to be updated according to the state information of the current plan;
[0055] Specifically, the proposal node can calculate the instance ID1 of the paxos instance that needs to be updated under the current plan by using a pre-agreed algorithm based on the state information of the current plan, that is, the instance ID and value of the approved paxos instance under the current plan.
[0056] The instance ID1 of the paxos instance to be updated can be obtained by adding 1 to the instance ID of the previous paxos instance under the same scheme. For example, if the instance ID of the previous paxos instance under the same scheme is 2, then the instance ID of the paxos instance to be updated is 3.
[0057] Step 206: The proposal node initiates an approval request to all approval nodes with the serial number SN1 and instance ID1...
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