[KAFKA-13743] kraft controller should prevent topics with conflicting metrics names from being created

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3.0
• Labels: kip-500
• Assignee: Deng Ziming
• Reporter: Colin McCabe
• Reviewer: Colin McCabe
• Created: 15/Mar/22 16:50
• Updated: 18/Jul/22 19:33
• Resolved: 14/Apr/22 02:22

Description

The kraft controller should prevent topics with conflicting metrics names from being created, like the zk code does.

Example:

[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$)

Issue Links

• links to: GitHub Pull Request #11910