DataYatri
Spark, seen under the hood
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Educational simulation
Data Skew Simulator
One fat partition vs a salted plan.
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Step
1
of 4
1. Even keys
2. Skew appears
3. UI evidence
4. Fix
Reduce tasks
US · 25%
2.1 min
EU · 12%
2 min
IN · 5%
2 min
BR · 3%
2 min