Reading a Public Postmortem — Comprehension Exercises
Read the public postmortem excerpt below, then answer comprehension questions about the incident summary, timeline, impact, and document structure.
📄 PASSAGE — Read carefully before answering
NovaDeploy Incident Report — INC-2026-0314 (Public Summary)
Summary: On 14 March 2026, between 09:17 UTC and 11:52 UTC, NovaDeploy's continuous deployment pipeline experienced a total outage lasting 2 hours and 35 minutes. Approximately 34% of active users who attempted deployments during this window received 503 errors. No data was lost. The incident was caused by an expired TLS certificate on the internal job queue service that was not covered by our automated certificate renewal process.
Timeline (abbreviated):
09:17 UTC — First 503 errors detected by synthetic monitoring.
09:31 UTC — On-call engineer paged; initial investigation begins.
10:04 UTC — Root cause identified as expired certificate on queue-svc.
10:19 UTC — Certificate manually renewed; partial service restored.
11:52 UTC — Full traffic restored after cache invalidation completed.
Impact: 34% of users attempting deployments were affected. Read-only operations (dashboard, logs, metrics) remained fully available throughout. SLA breach occurred for 12 enterprise customers; credits have been issued.
This postmortem follows NovaDeploy's blameless review process. Full action items and owner assignments are available in the internal version of this document.
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