Learning from Incidents and Post Incident Review Questions
Responding to incidents with curiosity rather than blame. Asking 'why' questions to understand root causes, proposing systemic improvements, and sharing knowledge from incidents with the team. Showing humility and demonstrating growth from past mistakes.
MediumTechnical
0 practiced
Write a Python script or clear pseudocode that parses a CSV incident log file with rows: timestamp (ISO8601), service, level, message. The program should output a summarized timeline grouped by minute with counts per service and the first error message for each minute. Describe streaming and memory considerations for very large files.
MediumTechnical
0 practiced
Design an experiment to validate that a proposed remediation from a postmortem actually prevents recurrence. Include hypothesis formulation, metrics to monitor (both primary and guardrail metrics), rollout plan (canary, percentage), rollback criteria, and how to measure statistical significance for a low-frequency failure.
MediumSystem Design
0 practiced
Design a scalable 'action item tracker' that integrates with postmortem documents, your task management system, and CI pipelines to automatically block deployments until high-priority action items are resolved. Discuss core components, data model, auth, ownership, workflow states, and enterprise governance considerations.
MediumTechnical
0 practiced
Case: A rollout of a new autoscaling policy caused thrashing under burst traffic, increasing latency and customer complaints. As SRE lead, draft a one-page post-incident executive summary: key facts, impact (metrics), root cause, action items with owners and ETA, risk to customers, and expected timeline for fixes and validation.
HardTechnical
0 practiced
Your organization has repeat failures due to a brittle shared library used by many services. Teams resist upgrading because of release windows and compatibility risk. Propose a comprehensive remediation plan that balances safety, velocity, and organizational constraints: include immediate mitigations, phased upgrade strategy, compatibility testing, automation, and incentives to motivate teams to upgrade.
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