Design a distributed Analytics System
Last updated: January 12, 2026
Quick Overview
Design a distributed analytics system handling millions of requests. Discuss consistency, availability, and performance trade-offs.
Walmart
System Design
Software Engineer
Walmart
January 12, 2026Software Engineer
Onsite
System Design
Medium
408
8
1,703 solved
Design a distributed 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:
- Data Ingestion: The system must handle data ingestion from various sources like POS systems, online transactions, and inventory systems in real time.
- **Data Proces...
Capacity Estimation
Assuming Walmart processes about 1 million transactions per hour from its stores and online platforms:
- Data Volume: Each transaction generates approximately 1KB of data. Therefore, the hourly da...
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