Description: Quorum consensus is a method used in distributed systems to achieve agreement among nodes based on a quorum of votes. This approach is fundamental to ensuring data consistency and availability in environments where multiple nodes operate independently. In a distributed system, each node may have its own copy of the data, and quorum consensus allows a group of nodes to agree on the state of that data. For a decision to be valid, it must be supported by a minimum number of nodes, known as a quorum. This helps prevent situations of inconsistency, where different nodes might have different versions of the data. Quorum consensus is based on mathematical and logical principles that ensure that even in the presence of failures or network partitions, the system can continue to operate reliably. This method is especially relevant in various critical applications, including distributed databases and file systems, where data integrity is paramount. Additionally, quorum consensus is used in consensus protocols like Paxos and Raft, which are fundamental for building robust and scalable distributed systems.
