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What are the potential downsides of enabling dynamic resource allocation?

General/Othereasy0.2 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
PWC
Key Concepts Tested
spark
Expert AnswerPremium
45 wordsInterview-ready
Dynamic allocation (Spark) downsides: (1) Latency—executor acquisition delay; short jobs suffer. (2) Uneven—stragglers if allocation slow. (3) Cost unpredictability—bursty in shared clusters. (4) External shuffle—may need extra service. (5) Small jobs—overhead not justified. Best: Dynamic for long, variable; static for predictable batch....
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