Replication protocol with consensus for a decentralized control plane in a computer system

A computer system, comprising:

• a plurality of host computers supporting execution of a plurality of nodes, the plurality of nodes supporting execution of a plurality of services and a framework, the framework executable by the plurality of host computers to:
• send a request for a service of the plurality of services, to an owner node of the plurality of nodes, the owner node being selected based on the service targeted by the request;
• receive a completion of the request after execution of a handler of a service instance on the owner node, where the service instance is an instance of the service and the completion indicates that the handler successfully updated a state of the service on the owner node;
• replicate the updated state of the service as a proposed state among a plurality of peer nodes of the plurality of nodes and receiving replies from the plurality of peer nodes about verification of the proposed state at each of the peer nodes;
• provide a response to the request for the service, from the owner node, for transmission to a client that originated the request, the response being generated based on the replies from the plurality of peer nodes.

A non-transitory computer readable medium comprising instructions, which when executed in a computer system, causes the computer system to carry out a method of replicating service state among a plurality of nodes in a computer system, comprising:

• sending a request for a service to an owner node of the plurality of nodes, the owner node being selected based on the service targeted by the request;
• receiving a completion of the request after execution of a handler of a service instance on the owner node, where the service instance is an instance of the service and the completion indicates that the handler successfully updated a state of the service on the owner node;
• replicating the updated state of the service as a proposed state among a plurality of peer nodes of the plurality of nodes and receiving replies from the plurality of peer nodes about verification of the proposed state at each of the peer nodes;
• providing a response to the request for the service, from the owner node, for transmission to a client that originated the request, the response being generated based on the replies from the plurality of peer nodes.