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Flipkart Big Billion Day: inventory shows 1 unit left for an iPhone, and 10,000 users click Buy simultaneously. What happens, and how do you fix it with Redis DECR and Kafka buffering?
A real Flipkart interview scenario testing whether you can design atomic inventory control under extreme concurrent load.
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Flipkart Big Billion Day: inventory shows 1 unit left for an iPhone, and 10,000 users click Buy simultaneously. What happens, and how do you fix it with Redis DECR and Kafka buffering?