📡 Monitoring

Monitoring architecture covers runtime observability and runtime-safe operational control.

Scope

• Monitoring Bridge: optional adapters that export runtime snapshots to external systems (Micrometer/Prometheus).
• Monitoring API: node-local management API exposed by monitoring-rest-json (/api/v1/*) for reports, actions, and runtime config overrides.

Module structure

• engine
• monitoring-micrometer
• monitoring-prometheus
• monitoring-rest-json-api
• monitoring-rest-json
• monitoring-console-web

Runtime model

• SegmentIndex.metricsSnapshot() provides immutable runtime snapshots.
• monitoring-rest-json aggregates snapshots from all monitored indexes in one JVM.
• monitoring-console-web consumes the API and renders node/index runtime views.
• Runtime config overrides are applied in memory only and do not rewrite persisted index metadata.
• GET /api/v1/config exposes supportedKeys; the same list defines which keys are accepted by PATCH /api/v1/config.

Pages

• Monitoring Bridge
• Monitoring API