Kafka and Redis are very different things - see this: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11577312" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11577312</a><p>Redis is a database, Kakfa is a data logging system built for scale and throughput. Event processing (of any kind like stocks, ad impressions, ecommerce purchases) are a great fit. Also good as a message queue unless you need ultra low-latency RPC.