BAC-L3-OPS-107
Metrics, dashboards and alerts
The reference observability workshop: what a node exposes, what to watch, and what should wake someone at night.
- Level
- L3 — Infrastructure engineer
- Duration
- 4 h
- Maintainer
- DevOps / Blockchain Infrastructure Engineer
Learning objectives
- 01Collect a node's metrics and build its dashboard
- 02Distinguish a diagnostic metric from an alerting metric
- 03Write an alert that does not fire for nothing
Guided lab
Instrument a node, build its dashboard, and trigger a real alert.
Independent lab
Define a public RPC node's service-level indicators and instrument them.
Security angle
A publicly exposed metrics endpoint informs an attacker: restrict it to the internal network.
Assessment
Dashboard plus an alert fired under real conditions.