LLD - Design — Hotel Booking System
You are designing a scalable search and filter system for an e-commerce site with millions of products. Which approach best balances fast search and flexible filtering?
You are designing a scalable search and filter system for an e-commerce site with millions of products. Which approach best balances fast search and flexible filtering?
hard📝 Trade-off Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Consider scalability and performance needs
Millions of products require fast, scalable search with flexible filters.Step 2: Evaluate options for search and filtering
Distributed search engines with inverted indexes enable fast text search; faceted filters allow flexible attribute filtering efficiently.Step 3: Eliminate inefficient approaches
Scanning large SQL tables or in-memory filtering is slow and not scalable; key-value stores lack complex search capabilities.Final Answer:
Use a distributed search engine with inverted indexes and faceted filters -> Option DQuick Check:
Distributed search + faceted filters = D [OK]
Quick Trick: Use distributed search with faceted filters for scale [OK]
Common Mistakes:
- Relying on full table scans for large data
- Ignoring indexing for search speed
- Using memory-heavy filtering for millions of items
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