Draft:KSML (Apache Kafka)

Submission declined on 25 October 2021 by Nearlyevil665 (talk).

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Declined by Nearlyevil665 2 years ago. Last edited by Jay 2 months ago. Reviewer: Inform author.

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KSML is an expression language and accompanying interpreter that allows users to specify Kafka Streams topologies as YAML. It was open sources by Axual in May 2021 under Apache License 2 with code published on GitHub.

The idea[edit]

The general idea of KSML is to express stream processing operations as a series of operations applied to a Kafka topic. The simplest example of a copying application is expressed as follows:

pipelines:
  main:
    from: some_topic
    to: some_other_topic

This example defines a topology that copies messages from a given source topic to a target topic. Custom functions can be added to the YAML specification as Python functions. For more information, see the KSML documentation.

Implementation[edit]

Under the hood, KSML delivers an interpreter that reads in the YAML definitions and maps them onto a Kafka Streams topology. This topology is then passed onto the Kafka Streams framework itself to be executed continuously.

Distribution[edit]

KSML is distributed as source code and as Docker images for plain Kafka and Axual Platform / Cloud.

References[edit]

External links[edit]

KSML website