Apache Kafka VS Apache RocketMQ

Apache Kafka — a distributed event streaming platform implementing a variant of the Raft consensus protocol (written in Java, integrated with Scala);

Spring does this during autoconfiguration. For example this and this. When the user adds a configuration then it gets to overwrite the default from the template. I am looking for something similar, perhaps simpler approach.

Source and documentation on GitHub

Code is still in trunk though. https://github.com/apache/kafka/tree/trunk/connect/file/src/main/java/org/apache/kafka/connect/file

I briefly described the algorithm in this article and there is a wonderful article from Kafka that goes into more depth in their general purpose implementation. My implementation is specialized and over optimized in comparison, e.g. by using bit manipulation to avoid more expensive division/modulus instructions. Tokio rewrote their timerwheel after I showed them mine, borrowing some ideas but also staying more general. Hope that helps!

Apache Kafka

Join the Apache RocketMQ community: https://github.com/apache/rocketmq

RocketMQ is a distributed message and streaming data platform featuring low latency, high performance, high reliability, trillions of capacity, and flexible extensibility. In other words, it consists of a broker server and a client. The client includes a message producer which sends messages to the broker server and a message consumer. Multiple consumers can form a consumer group to subscribe to and pull messages stored on the broker server.