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https://issues.apache.org/jira/browse/KAFKA-16449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17832842#comment-17832842
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Yusu Gao commented on KAFKA-16449:
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[~vedarth] Thank you so much for the clarification. I was reading the other
documentation here: [https://kafka.apache.org/37/documentation/#quickstart]
which I have to say it's blur to tell docker image is for KRaft mode only.
Please feel free to close this issue.
> Kafka Docker run foce formatting with Zookeeper connect setup and block kafka
> running
> -------------------------------------------------------------------------------------
>
> Key: KAFKA-16449
> URL: https://issues.apache.org/jira/browse/KAFKA-16449
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 3.7.0
> Reporter: Yusu Gao
> Priority: Major
>
> I am adopting the official kafka image for testing purpose with zookeeper
> enabled, however when trying to launch kafka, I get blocked with below
> message mentioning about format issue:
>
> {code:java}
> b4870f897e2a:/opt/kafka$ /etc/kafka/docker/run
> ===> User
> uid=1000(appuser) gid=1000(appuser) groups=1000(appuser)
> ===> Setting default values of environment variables if not already set.
> ===> Configuring ...
> ===> Launching ...
> ===> Using provided cluster id <some id> ...
> The kafka configuration file appears to be for a legacy cluster. Formatting
> is only supported for clusters in KRaft mode.
> {code}
> Which leads to:
> [https://github.com/apache/kafka/blob/3.7.0/docker/jvm/launch#L57-L58],
> which leads to
> [https://github.com/apache/kafka/blob/3.7.0/core/src/main/scala/kafka/docker/KafkaDockerWrapper.scala#L46]
>
> and then leads to
> [https://github.com/apache/kafka/blob/3.7.0/core/src/main/scala/kafka/tools/StorageTool.scala#L90]
> If my understanding is correct, StorageTools#format is only supposed to run
> for KRaft mode, yet current docker image script is enforcing running this
> command even for Zookeeper mode.
> Please advise if this is actually by design or this should be fixed as a bug.
> Thank you.
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