DataEngPrep.tech
QuestionsBlogStore
Get PDF Bundle
Home/Questions/Behavioral/Tell me about a time when a Spark job failed in production. How did you fix it?

Tell me about a time when a Spark job failed in production. How did you fix it?

Behavioralmedium0.2 min readPremium
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
Asked at these companies
Microsoft
Key Concepts Tested
joinpartitionspark
Expert AnswerPremium
49 wordsInterview-ready
Situation: Spark job OOM due to key skew—one partition had 80% of data. Task: Diagnose and fix. Action: Used Spark UI; identified skewed stage. Fixed with salting, increased executor memory, broadcast joins for dimensions. Deployed; added skew monitoring and data quality check....
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 Microsoft. The answer also includes follow-up discussion points that interviewers commonly explore.

Continue Reading the Full Answer

Unlock the complete expert answer with code examples, trade-offs, and pro tips - plus 1,863+ more.

Create Free Account - Unlock 30 Answers
Get PDF Bundle - from $21

Or upgrade to Platform Pro - $39

Engineers who used these answers got offers at

AmazonDatabricksSnowflakeGoogleMeta

Free: Top 20 SQL Interview Questions (PDF)

Get the most asked SQL questions with expert answers. Instant download.

No spam. Unsubscribe anytime.

Related Behavioral Questions

hardTell me about yourself and your experience.FreeeasyTell me about your family backgroundFreeeasyWhat are your salary expectations for this role?FreeeasyWhere do you see yourself in your career five years from now?FreehardBriefly introduce yourself and walk us through your journey as a Data Engineer so far.Free

According to DataEngPrep.tech, this is one of the most frequently asked Behavioral interview questions, reported at 1 company. DataEngPrep.tech maintains a curated database of 1,863+ real data engineering interview questions across 7 categories, verified by industry professionals.

← Back to all questionsMore Behavioral questions →