Roadmap › Team Lead, Managerial & Agile Interview › Module: Delivery and Stakeholders
Lessons in this course (13)
10. Production incidents and post-mortems
Intermediate★ Must knowLesson 10 of 13
- Define severity levels (Sev1: full outage/revenue impact; Sev2: major feature down; Sev3: minor).
- During an incident: an incident commander coordinates; separate roles for investigation and communication; focus on restoring service first (rollback, failover, feature flag off), root cause later; regular updates to stakeholders/status page.
- Blameless post-mortem: timeline, impact, root cause(s) (5 Whys), what went well, what didn't, action items with owners and dates.
- Track MTTR (mean time to restore) and change failure rate; invest in monitoring, alerting, runbooks and safe deployments.