Guides
Observe runtime health
Use delivery lag, lease pressure, retry rate, and quarantine volume to understand an Arcwell workload.
Runtime signals
| Metric | Question | Alert when |
|---|---|---|
| arc_delivery_lag_seconds | Are workers keeping up? | Above workload SLO |
| arc_lease_pressure_ratio | Is capacity constrained? | Above 0.80 for 10 min |
| arc_quarantine_total | Are failures exhausted? | Any sustained increase |
Structured logs
Include event ID, delivery ID, stream, attempt, and workspace in every worker log. Do not log full payloads unless the data policy permits it.
Inspect a workload
shell
arcctl inspect stream northline-fulfillment --window 30m