NautheraServerErrorBudgetBurnFast
Docs version v1 (main)Nauthera is pre-1.0, in a design-partner program
Public requests fail with a 5xx fast enough to spend the error budget within days.
Meaning
The share of public requests answered with a 5xx is above 14.4 times the error budget of
availabilityObjective (99.9% by default, a budget of 0.1%) over both the last hour and
the last five minutes, or above 6 times it over both six hours and 30 minutes. It is a
multi-window burn-rate alert: it fires on a real outage within minutes and clears soon
after the errors stop. Most 5xx come from a dependency (database, cache), the audit
pipeline with audit.fail_closed, or a defect in a new version.
Impact
Users signing in, relying parties exchanging codes and refreshing tokens, and administrators all see failures on the routes that error. At 14.4 times the budget about 1.4% of all requests fail with the default objective; the route breakdown says whether it is everyone's sign-in or one endpoint.
Diagnosis
- Which routes and statuses:
sum by (route, code) (rate(nauthera_.http_ requests_ total\{job="<name>",code=~"5. . "\}[5m])) routeis the API contract's operation name, such astokenorauthorize. - Check the dependency alerts: NautheraDatabaseUnavailable, NautheraCacheUnavailable, NautheraCacheErrors, NautheraAuditWritesFailing.
- Read the failing requests' log lines:
kubectl -n <ns> logs deploy/, and other lines with the same<name> | jq 'select(. msg=="http_ request" and . status>=500)' request_id. - A user's reference ID from an error page can be pasted into the admin dashboard's Troubleshooting page to see what the server recorded for that request.
- Correlate with the last rollout:
kubectl -n <ns> rollout history deploy/.<name>
Mitigation
- A dependency outage: follow that alert's runbook.
- Started with a rollout:
helm rollback <release>. 503on admin changes only, with the audit pipeline degraded andaudit.fail_closedon: follow NautheraAuditWritesFailing.- One replica failing while others are fine: delete that pod and watch whether the replacement fails the same way.
Escalation
Page the identity platform owner: this rate exhausts a month's budget in days. If the
5xx come from the server itself with healthy dependencies, open an issue with the routes
and status codes, a few request_ids and their log lines, and the server version
(nauthera_build_info).
Alert runbooks · Generated from internal/ and operator/ in nauthera-server.