Gossip Protocol
Highly scalable, epidemic metadata sharing enabling decentralized nodes to broadcast cluster changes.
What you'll learn
- Anti-Entropy
- Rumor Mongering
- Epidemic Spread
TL;DR
Highly scalable, epidemic metadata sharing enabling decentralized nodes to broadcast cluster changes.
Concept Overview
A Gossip Protocol is a decentralized, peer-to-peer communication protocol where nodes share state updates, membership logs, and heartbeats by randomly choosing neighbors and exchanging metadata, mimicking the epidemic spread of social rumors.
Key Architectural Pillars
Anti-Entropy
A gossip style where nodes periodically select a random peer to fully synchronize state data.
Rumor Mongering
When a node learns new data, it aggressively broadcasts it to a random subset of peers; those peers repeat the process.
Epidemic Spread
Information spreads exponentially (O(log N)) across the cluster without requiring a central coordinator.