/ The Arena

Landmark Capstone Challenge: Raft Leader Election Engine ⚔️

In this landmark capstone challenge, you will implement the core Raft Leader Election State Machine across simulated distributed nodes.

Requirements:

1. Election Timeout & Candidate Promotion:
   • Increment currentTerm by 1.
   • Transition to CANDIDATE and vote for self.
   • Initialize votesReceived set containing local nodeId.
2. RequestVote RPC Handling:
   • Reject votes from older terms (term < currentTerm).
   • If term > currentTerm, update term and step down to FOLLOWER.
   • Grant at most one vote per term (votedFor === null || votedFor === candidateId).
3. Vote Response Processing:
   • Track received votes from peers.
   • Transition to LEADER once majority quorum $Q=\lfloor N/2\rfloor +1$ is attained.
   • Step down immediately if a peer returns a higher term.