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What metrics do you use to determine whether a Spark job is going well or not?

Spark/Big Dataeasy0.5 min readPremium
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Asked at 1 company
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questions in Spark/Big Data
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1,863
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Asked at these companies
Delivery Hero
Key Concepts Tested
spark
Expert AnswerPremium
91 wordsInterview-ready
**Good Signs**: Even task duration (no skew). Low GC time. No spill. High executor compute time vs. total. Input bytes processed. No task failures. **Bad Signs**: Skewed task duration (one 10x longer). High GC. Spill (memory/disk). Low compute ratio. Task failures. Growing backlog. **Spark UI Metrics**: Stage duration, shuffle read/write, GC time, spill. Task duration histogram. DAG. **SLA Metrics**: End-to-end duration, success rate....
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