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What strategies do you use to retry failed steps in workflows?

General/Othereasy0.3 min readPremium
Frequency
Low
Asked at 1 company
Category
243
questions in General/Other
Difficulty Split
151E|43M|49H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
TCS
Key Concepts Tested
airflowpython
Expert AnswerPremium
54 wordsInterview-ready
**Retry:** Exponential backoff + jitter. Libraries: tenacity (Python), resilience4j (Java). Max 3–5 retries; cap backoff. **When:** Transient only (5xx, timeouts); not 4xx. **Workflows (Airflow, Step Functions):** retry_delay, retries on task; DLQ for permanent failures. **Critical:** Idempotent ops; idempotency keys for APIs. **Cost:** Retries increase load—tune max; log for observability....
The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like TCS. The answer also includes follow-up discussion points that interviewers commonly explore.

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