Application and system sketching based on code templates

book-731199_1280On almost every desk on this planet lies a pen and a piece of paper for notes. In the programmers or software-architects world notes are especially technical notes about a component or system – drawn e.g. as UML-sketches on a paper or via an UML tool. However a few minutes and discussions later the names of the UML-boxes are typed into an IDE as part of source-code that will be written during the next days, weeks, months… Continue reading “Application and system sketching based on code templates”

A coffee with Kafka

A few months ago I got in touch with Kafka – the message broker Apache Kafka rather than Franz Kafka the novelist.
Apache Kafka is simply a message broker which claims to be:

  • Fast – Hundreds of MB r/w per second from thousands of clients
  • Scalable
  • Central data backbone – Data streams are partitioned and spread over a cluster of machines
  • Durable – Messages are persisted on disk and replicated within the cluster
  • Fault-tolerance – Cluster-centric design

Continue reading “A coffee with Kafka”