AdvancedTechnical
5 min
Data Partitioning Strategies
DatabasesPartitioningScalability
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Interview Question
How would you design data partitioning for a system that must handle billions of records with fast queries?
Key Points to Cover
- Choose partition keys that evenly distribute load
- Apply range, hash, or composite partitioning
- Design secondary indexes for query efficiency
- Handle partition rebalancing and hotspot prevention
Evaluation Rubric
Chooses effective partition keys30% weight
Explains partitioning strategies30% weight
Handles partition rebalancing20% weight
Optimizes query performance20% weight
Hints
- 💡Think DynamoDB partition key design.
Potential Follow-up Questions
- ❓How do you detect partition hotspots?
- ❓What about multi-tenant data?
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