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https://issues.apache.org/jira/browse/KAFKA-13743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dengziming resolved KAFKA-13743.
--------------------------------
Reviewer: Colin McCabe
Resolution: Fixed
> kraft controller should prevent topics with conflicting metrics names from
> being created
> ----------------------------------------------------------------------------------------
>
> Key: KAFKA-13743
> URL: https://issues.apache.org/jira/browse/KAFKA-13743
> Project: Kafka
> Issue Type: Bug
> Reporter: Colin McCabe
> Assignee: dengziming
> Priority: Major
> Labels: kip-500
> Fix For: 3.3.0
>
>
> The kraft controller should prevent topics with conflicting metrics names
> from being created, like the zk code does.
> Example:
> {code}
> [cmccabe@zeratul kafka1]$ ./bin/kafka-topics.sh --create --topic f.oo
> --bootstrap-server localhost:9092
>
> WARNING: Due to limitations in metric names, topics with a period ('.') or
> underscore ('_') could collide. To avoid issues it is best to use either, but
> not both.
> Created topic f.oo.
>
>
> [cmccabe@zeratul kafka1]$ ./bin/kafka-topics.sh --create --topic f_oo
> --bootstrap-server localhost:9092
> WARNING: Due to limitations in metric names, topics with a period ('.') or
> underscore ('_') could collide. To avoid issues it is best to use either, but
> not both.
> Error while executing topic command : Topic 'f_oo' collides with existing
> topics: f.oo
> [2022-03-15 09:48:49,563] ERROR
> org.apache.kafka.common.errors.InvalidTopicException: Topic 'f_oo' collides
> with existing topics: f.oo
> (kafka.admin.TopicCommand$)
> {code}
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