Release 91.3: Schema Configurability

Tuesday, April 18th 2023 by Factor House

Release Info

Kpow can be found on Dockerhub

docker pull factorhouse/kpow-ee:91.3

View our Docker quick start here.

Kpow v91.3 is a minor release that introduces new Schema and Connect features and resolves a number of small issues.

Improved Schema Configurability

This release introduces new configuration options for Schema Registry, including:

  • New environment variables when connecting to Schema Registry with Oauth2
  • AWS Glue static credentials for authentication
  • AWS Glue cross-account AWS access (STS Assume Role support)

See our Schema Registry configuration documentation for more.

Improved Prometheus Reporting

Kpow now provides richer prometheus metrics for consumer groups:


The existing metrics endpoint now returns group.member.count and gauges for each consumer group


This new endpoint returns information about every individual group member assignment, including offset, offset-delta, last-read, and first-observed.

Improved Connector Creation

You can now create a connector in Kpow from JSON input, the same as you would post to the Connect REST endpoint.

Changelog v91.3

  • Introduce Kafka Connect JSON import dialog and form integration
  • Introduce Prometheus group.member.count and metrics
  • Introduce Prometheus /group-offsets/v1 endpoint for group assignment offset metrics
  • Improve schema registry AWS configurability with static and STS credentials
  • Improve schema registry Oauth2 configurability with new parameters
  • Improve Kafka Connect validation with CONNECT_STARTUP_VALIDATION (default: true)
  • Fix auth regression bug, admin_roles considered authorized_roles
  • Fix stages scheduled mutations misfire bug
  • Fix PERSISTENCE_MODE=none when running in a multi-cluster environment
  • Fix several minor UI bugs
  • Bump to Slipway 1.1.6, latest Jetty dependencies

See the full Kpow Changelog.

Get this release on Dockerhub, on the AWS Marketplace, on ArtifactHub (Helm Charts), or Download as a JAR File.

Pull the latest Kpow Docker Container

docker pull factorhouse/kpow-ee:91.3

Download the Kpow Java 11+ JAR

Download the Kpow Java 8 JAR


Schema Registry
Kafka Connect