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 5. The PubSub consumers pull aggregated emoji data from Kafka. 
 
 6. Emojis are delivered to other clients in real-time through the PubSub infrastructure. The PubSub infrastructure is interesting. Hotstar considered the following protocols: Socketio, NATS, MQTT, and gRPC, and settled with MQTT.
-7. 
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 A similar design is adopted by LinkedIn which streams a million likes/sec.
 
 ### How Discord Stores Trillions Of Messages