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A comment on Heroku Kafka. Parent comment

Re:Heroku Kafka by 010a on Tuesday April 26, 2016 @10:51PM (#11577537)
Redis does a lot more than just store keys and values. Functionally speaking Redis Pub/Sub and Kafka are interchangable up to a certain level of throughput.
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Re:Heroku Kafka by saryant on Tuesday April 26, 2016 @10:59PM (#11577565)
They really serve very different use cases. Redis pub/sub consumers only receive messages while connected, whereas Kafka consumers can pick up where they left off. Event ordering, back pressure, etc.

There are many use cases Redis pub/sub can't serve beyond just scalability.

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