In distributed systems, particularly those using Byzantine Fault Tolerance (BFT) consensus protocols, a view change is a mechanism to replace a faulty or unresponsive leader node. This process ensures the system can continue operating and reach consensus even if the current leader fails. It is a critical component for maintaining liveness and fault tolerance in decentralized networks. A view change restores the system’s ability to progress.
Context
While less commonly reported in mainstream crypto news, view changes are fundamental to the operational resilience of many blockchain protocols, especially those employing BFT-derived consensus.
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