You are viewing a plain text version of this content. The canonical link for it is here.
Posted to jira@kafka.apache.org by "Maros Orsak (Jira)" <ji...@apache.org> on 2026/10/14 08:08:00 UTC
[jira] [Updated] (KAFKA-21277) Docker image: support KRaft dynamic quorum (KIP-853) controllers
[ https://issues.apache.org/jira/browse/KAFKA-21277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Maros Orsak updated KAFKA-21277:
--------------------------------
Description:
The Docker image can only run controllers with static voters. With controller.quorum.bootstrap.servers instead:
# KafkaDockerWrapper always formats with plain kafka-storage format. On a controller without voters, StorageTool requires --standalone or --no-initial-controllers, so the format fails and the container exits.
# The image configure script rejects KAFKA_ADVERTISED_LISTENERS on controller-only nodes, but a dynamic voter needs an advertised controller endpoint.
We should (i.) add a new env var (e.g. STORAGE_FORMAT_ARGS) appended to the images format command and (ii.) allow KAFKA_ADVERTISED_LISTENERS on controllers when it lists only controller listeners.
Default behaviour stays unchanged. Since the env vars are part of the images, interface (KIP-975), this might require a small KIP.
Affects the 3.9.x+ version.
was:
The Docker image can only run controllers with static voters. With controller.quorum.bootstrap.servers instead:
# KafkaDockerWrapper always formats with plain kafka-storage format. On a controller without voters, StorageTool requires --standalone or --no-initial-controllers, so the format fails and the container exits.
# The image configure script rejects KAFKA_ADVERTISED_LISTENERS on controller-only nodes, but a dynamic voter needs an advertised controller endpoint.
We should (i.) add a new env var (e.g. STORAGE_FORMAT_ARGS) appended to the images format command and (ii.) allow KAFKA_ADVERTISED_LISTENERS on controllers when it lists only controller listeners.
Default behaviour stays unchanged. Since the env vars are part of the images, interface (KIP-975), this might require a small KIP.
Affects the 3.9.x+ version.
> Docker image: support KRaft dynamic quorum (KIP-853) controllers
> ----------------------------------------------------------------
>
> Key: KAFKA-21277
> URL: https://issues.apache.org/jira/browse/KAFKA-21277
> Project: Kafka
> Issue Type: Improvement
> Reporter: Maros Orsak
> Assignee: Maros Orsak
> Priority: Major
>
> The Docker image can only run controllers with static voters. With controller.quorum.bootstrap.servers instead:
> # KafkaDockerWrapper always formats with plain kafka-storage format. On a controller without voters, StorageTool requires --standalone or --no-initial-controllers, so the format fails and the container exits.
> # The image configure script rejects KAFKA_ADVERTISED_LISTENERS on controller-only nodes, but a dynamic voter needs an advertised controller endpoint.
> We should (i.) add a new env var (e.g. STORAGE_FORMAT_ARGS) appended to the images format command and (ii.) allow KAFKA_ADVERTISED_LISTENERS on controllers when it lists only controller listeners.
> Default behaviour stays unchanged. Since the env vars are part of the images, interface (KIP-975), this might require a small KIP.
> Affects the 3.9.x+ version.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)