17 Design a dashboard of top 10 products on Amazon by sales volume
This chapter covers
- Scaling an aggregation operation on a large data stream
- Using a Lambda architecture for fast approximate results and slow accurate results
- Using Kappa architecture as an alternative to Lambda architecture
- Approximating an aggregation operation for faster speed
Analytics is a common discussion topic in a system design interview. We will always log certain network requests and user interactions, and we will perform analytics based on the data we collect.
The Top K Problem (Heavy Hitters) is a common type of dashboard. Based on the popularity or lack thereof of certain products, we can make decisions to promote or discontinue them. Such decisions may not be ...
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