Interview questions
Scaling & load balancingMediumSDE-2

You run 20 WebSocket servers for live order tracking. After a rolling deploy, the first servers that came back hold 80% of the connections and the last ones are almost empty. Why, and how do you rebalance?

Asked at
SwiggyUberZomato

Think first

Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

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