Design a high-throughput Analytics System
Last updated: January 21, 2026
Quick Overview
Design a high-throughput analytics system handling millions of requests. Discuss consistency, availability, and performance trade-offs.
Walmart
System Design
Software Engineer
Walmart
January 21, 2026Software Engineer
Technical Screen
System Design
Hard
4
4
835 solved
Design a high-throughput analytics system handling millions of requests. Discuss consistency, availability, and performance trade-offs.
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
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Requirements
Functional Requirements:
- Real-time Analytics: The system should process and analyze data in real-time to provide insights on customer behavior, inventory levels, and sales trends.
- **Data...
Capacity Estimation
Back-of-Envelope Calculations:
Assuming Walmart processes approximately 1 million transactions per hour, that translates to about 278 transactions per second (TPS). If each transaction generates a...
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