Consensus liveness means that a distributed system continuously makes progress and processes new transactions, even in the presence of failures. It guarantees that valid, non-faulty nodes will eventually agree on a new state and commit new operations. This property ensures that the network does not halt or become unresponsive, allowing operations to continue indefinitely.
Context
News about blockchain protocols frequently discusses consensus liveness, particularly concerning network upgrades or incidents that test a system’s resilience. Protocols strive to maintain high liveness guarantees, ensuring that transactions are confirmed and the chain extends without undue delay. Debates often surround trade-offs between liveness and safety in different consensus algorithms.
A new SMR synchronizer primitive modularizes liveness mechanisms in Byzantine protocols, enabling provably robust and efficient distributed state consistency.
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