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Home/Questions/Behavioral/Tell me about a time when a critical pipeline failed in production. What did you do?

Tell me about a time when a critical pipeline failed in production. What did you do?

Behavioraleasy0.3 min read

Reviewed by Aditya Kumar · Last reviewed 2026-03-24

Situation: Critical pipeline failed during revenue cycle. Task: Restore and improve. Action: Acknowledged in on-call channel; triaged (logs, UI, upstream). Root cause: upstream schema change. Implemented schema evolution; communicated every 30 mins. Backfill and validation....

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Frequency
Low
Asked at 1 company
Category
144
questions in Behavioral
Difficulty Split
100E|18M|26H
in this category
Total Bank
1,863
across 7 categories
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Expert Answer
51 words

Situation: Critical pipeline failed during revenue cycle. Task: Restore and improve. Action: Acknowledged in on-call channel; triaged (logs, UI, upstream). Root cause: upstream schema change. Implemented schema evolution; communicated every 30 mins. Backfill and validation. Post-mortem with action items. Implemented schema validation within a week. Result: Restored; preventive measures in place.

⚡
Pro Tip

Red Flag: No post-mortem or preventive measures. Pro-Move: '30-min comms, schema validation added within a week—post-mortem with action items.'

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According to DataEngPrep.tech, this is one of the most frequently asked Behavioral interview questions, reported at 1 company. DataEngPrep.tech maintains an editor-reviewed database of 1,863 data engineering interview questions across 7 categories.

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