Meaning
Distributed databases require a shared agreement on the current values of all records held across independent participating nodes. This collective record represents the consensus state, which ensures that every node contains identical blocks of transaction data. Valid updates must propagate to a majority of participants before the system updates this record.
Verification Process
Cryptographic proofs must match across all nodes to confirm the validity of each update. To achieve this, the system generates a hash of the current database values, which each node compares against its neighbors. This ensures that unauthorized modifications to the records are detected immediately, preventing the spread of incorrect database entries.
If a node holds an incorrect record, the network rejects its contribution. This automated check runs continuously to prevent data corruption.
Audit Delay
Reaching agreement takes a measurable amount of computational time. The consensus state cannot update instantly because messages must travel across multiple servers.
Operational Risk
Node disconnection during high transaction volumes can prevent the network from finalizing updates. When a network partition occurs, some participants cannot communicate, causing a halt in updates or forcing the system to operate in a degraded state. Unresolved network splits force manual intervention to reconcile differences.
Recovery demands substantial staff hours.
