Thank you Jonathan!<p>As Jonathan mentioned, we made this decision around 9 months back and at that time Kinesis wasn&#x27;t as mature and had less flexibility around retention period etc.<p>Kafka is very reliable (as I had seen it handling billions of events a day at LinkedIn) and has a huge open-source community around it. At IFTTT, we always prefer to use and contribute to open source ( <a href="http:&#x2F;&#x2F;engineering.ifttt.com&#x2F;oss&#x2F;2015&#x2F;07&#x2F;23&#x2F;open-source&#x2F;" rel="nofollow">http:&#x2F;&#x2F;engineering.ifttt.com&#x2F;oss&#x2F;2015&#x2F;07&#x2F;23&#x2F;open-source&#x2F;</a> ).