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Consensus in Centralized vs Decentralized Systems
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Consensus in Centralized vs Decentralized Systems
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Feb 25, 2020
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miceperry
Consensus in Centralized vs Decentralized Systems
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Feb 25, 2020
by
miceperry
Consensus in Centralized vs Decentralized Systems
The consensus is a fault-tolerant mechanism used in blockchain and other distributed systems to reach to an agreement to add or commit a transaction to the database by all the participating nodes.
Consensus mechanisms make a distributed system truly
trustless
.
Centralized distributed systems achieve consensus under the fail-stop assumption. This requires that the distributed system agrees on a value in the face of node and link failures but not if a node behaves maliciously.
Decentralized systems are required to operate under Byzantine node failure where a failed node may act maliciously, i.e., they may not respond, or they may send incorrect information.
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