Quorum-based replication and Raft
Quorum-based replication and Raft are both techniques used in distributed systems to ensure consistency and fault tolerance, but they differ in their approaches and use cases. Quorum-Based Replication Quorum-based replication is a general approach to achieving consistency in distributed systems by requiring a majority (quorum) of nodes to agree on operations like reads and writes. It is often used in systems like distributed databases and key-value stores. Quorum Size: A quorum is a subset of nodes that must agree on an operation (e.g., read or write) for it to be considered successful. The quorum size is typically defined as a majority of nodes (e.g., ( \frac{N}{2} + 1 ) for ( N ) nodes). Read and Write Quorums: ...