Question 1

How to set up a Verdi Raft cluster for the vard key-value store?

Accepted Answer

First, run `make vard` to compile the OCaml binary, then start nodes on different machines with command-line options specifying ports and IPs, as detailed in the README's cluster setup instructions.

Question 2

Verdi Raft vs etcd: which should I use for a new project?

Accepted Answer

Use Verdi Raft if you prioritize formal verification and correctness proofs for academic or high-assurance systems, but choose etcd for production-ready features, better performance, and broader community support.

Question 3

Is vard production ready compared to etcd?

Accepted Answer

No, vard is a demonstration tool with limited features and benchmark caveats; etcd is more robust and feature-rich, making it the standard for production key-value stores.

Question 4

What Coq skills are needed to work with Verdi Raft?

Accepted Answer

You need advanced proficiency in Coq for understanding and modifying proofs, as the project involves complex formal verification techniques and proof interfaces like `OneLeaderPerTermInterface`.

Question 5

How does Verdi Raft ensure Raft safety properties?

Accepted Answer

It provides Coq proofs for key interfaces such as `OneLeaderPerTermInterface` and `LogMatchingInterface`, which are verified to ensure election safety and log consistency properties.

Question 6

Can I extract Verdi Raft to languages other than OCaml?

Accepted Answer

Currently, extraction is only supported to OCaml; using it with other languages would require additional bridging code or re-implementation, limiting integration flexibility.

Verdi Raft

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