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RAN-DBDEA-00068
Ranvier · DBDEA

Exam DBDEA Topics: jobs Difficulty: medium

A Lakeflow Job on classic compute has four tasks that run sequentially, and each task is configured with its own job cluster. Every task spends several minutes waiting for its cluster to start before doing any work. The team wants to reduce this startup overhead within each run. What should they do?

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  1. A. Have the four tasks share a single jobs compute resource for the whole run
  2. B. Replace the job clusters with one all-purpose cluster that stays running between job runs
  3. C. Add artificial dependencies so that all four clusters start in parallel before the tasks run
  4. D. Increase the worker count on each job cluster so that cluster startup finishes sooner
Reveal answer

Correct answer: Have the four tasks share a single jobs compute resource for the whole run

Reference: https://docs.databricks.com/aws/en/jobs/compute

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Official Answer (A): Have the four tasks share a single jobs compute resource for the whole run

⚓ Official Documentation Anchor: https://docs.databricks.com/aws/en/jobs/compute
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