trait node.discovery {
uses network.core
node is discovered
node is registered
node is healthy
node is unreachable
each discovery emits event
}
docs {
Node discovery is a fundamental capability in distributed systems that enables
dynamic topology management and service coordination. When a new node joins a
distributed cluster, it must be discovered by existing nodes through mechanisms
like heartbeat protocols, gossip protocols, or centralized registry services.
The discovery process involves initial detection, registration with the cluster
membership, and ongoing health monitoring to track node availability. A node
transitions through states from discovered to registered, maintains a healthy
status through periodic liveness checks, and may become unreachable due to
network partitions or failures. Each discovery event triggers notifications
that allow other system components to react appropriately, such as load
balancers updating routing tables or consensus algorithms recalculating quorums.
}