Microsoft · DP-750
Performance tuning and Azure Monitor
DP-750 · Lesson 19 of 19 · 2:22:30
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In this lesson
Prepare for the DP-750 exam (Microsoft Certified: Azure Databricks Data Engineer Associate). In this lesson: the DAG, the Spark UI, and the query profile, skew, spill, shuffle, and caching, OPTIMIZE, VACUUM, and predictive optimization, log streaming to Log Analytics with diagnostic settings, and Azure Monitor alert rules and action groups. Includes three original practice questions.
Preview the topics
- In one stage of the slow join, a few tasks run twenty times longer than the others, and one customer ID holds forty percent of the rows. What resolves the problem?
- Queries on the readings table slowed down as streaming writes produced millions of small files. Which command addresses the small files?
- The operations team wants an alert, alongside its other Azure alerts, when more than five Databricks job failures occur within an hour. What should it configure?