Consensus is one of the most important challenges in designing and building distributed systems–how to make sure multiple nodes (or agents, processes, threads, tasks, participants, etc.) in a group agree on a specific value proposed by at least one of the nodes. As an open-source distributed transactional key-value database, TiKV uses the Raft Consensus Algorithm to ensure data consistency, auto-failover, and fault tolerance. TiKV has thus far been used by almost 1000 adopters in their prod...
