Description
We recently discovered that the new group coordinator — developed as part of KIP-848 — was unintentionally enabled by default in Confluent Platform 7.9.0 and 7.9.1. While this will be the default group coordinator starting with Apache Kafka 4.0 and Confluent Platform 8.0, enabling it in Confluent Platform 7.9.x could lead to unintended side effects, as it has not been certified for use in that version.
Applies To
Confluent Platform 7.9.0 and 7.9.1
Resolution
We ask that you explicitly disable the new implementation by setting the following broker configuration on every broker, and perform a cluster rolling restart:
group.coordinator.new.enable=false
If you are using Confluent Ansible, please follow those documentations :
If you are using Confluent for Kubernetes, please follow those documentations :
The feature has been disabled by default in Confluent Platform 7.9.2
Note: If any Kafka Broker is added to the Cluster before you can upgrade to Confluent Platform 7.9.2, ensure this property is set on the newly deployed Kafka Broker as well.