IntermediateBehavioral
5 min
Deciding to Roll Back Under Pressure
DeploymentDecision MakingObservability
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Interview Question
Tell me about a time you decided quickly to roll back a deployment. What signals guided your decision?
Key Points to Cover
- Explains monitoring signals and thresholds
- Coordinates rollback steps effectively
- Ensures data safety and reversibility
- Implements better rollout policies
Evaluation Rubric
Identifies rollback signals30% weight
Coordinates rollback properly30% weight
Ensures data safety20% weight
Implements learnings20% weight
Hints
- 💡Include feature flags or canaries.
Common Pitfalls to Avoid
- ⚠️Failing to have clearly defined and monitored thresholds for key performance indicators.
- ⚠️Hesitating to roll back due to pressure or a desire to 'fix it in place'.
- ⚠️Lack of a clear, documented, and rehearsed rollback procedure.
- ⚠️Insufficient communication or coordination with other teams during the rollback process.
- ⚠️Not verifying the stability of the rolled-back version or failing to conduct a post-incident analysis.
Potential Follow-up Questions
- ❓What guardrails did you add later?
- ❓How did you prevent repeats?
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