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User•Turn #1
I need to design a system that handles 1 million concurrent users. What are the key things I need to think about?
1 turns • 113 chars
Assistant•Turn #2
This is where architecture gets really interesting! Let's design this systematically:
PHASE 1: Understand the load.
1M concurrent users does not equal 1M requests per second.
Active users might make...
2 turns • 1215 chars
User•Turn #3
Yes! How do I design the database sharding? What should I shard by?
3 turns • 1282 chars
Assistant•Turn #4
Sharding is both art and science! Let's design it properly:
SHARDING STRATEGIES:
1. HASH-BASED SHARDING (recommended): Use consistent hashing. User ID gets hashed, then modulo by number of shards.
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4 turns • 2178 chars
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