Hi, We're assessing Kafka for use at Acquia. We run tens of thousands of customer websites and many internal applications on ~9k AWS EC2 instances.
We're currently weighing the pros and cons of starting with 0.82 plus custom security, or waiting until the security features land in 0.9. How likely is Kafka 0.9 to ship in April 2015? (As seen here - https://cwiki.apache.org/confluence/display/KAFKA/Future+release+plan.) How stable is the 0.9 branch? Is it crazy to consider running a 0.9 beta in production? Are there any existing patch sets against 0.8x that implement security features? thanks, Justin