Module node_monitor 

Cluster node health monitoring with heartbeat tracking.

A NodeMonitor tracks the liveness of cluster nodes by recording incoming heartbeats and timing out nodes that have been silent for longer than a configurable timeout_ms.

Structs

HeartbeatRecord

A single heartbeat receipt.

NodeInfo

Static information about a registered node.

NodeMonitor

Tracks node health based on heartbeat records and configurable timeouts.

Enums

NodeRole

Role a node plays in the cluster.

NodeState

Current health state of a node, updated by heartbeat arrival and timeout detection.