cmccabe commented on a change in pull request #11910:
URL: https://github.com/apache/kafka/pull/11910#discussion_r840122353
##########
File path:
metadata/src/main/java/org/apache/kafka/controller/ReplicationControlManager.java
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@@ -548,6 +550,15 @@ static void validateNewTopicNames(Map<String, ApiError>
topicErrors,
topicErrors.put(topic.name(),
new ApiError(Errors.INVALID_TOPIC_EXCEPTION,
e.getMessage()));
}
+ if (Topic.hasCollisionChars(topic.name())) {
Review comment:
We shouldn't loop through all topics in the cluster here. This could be
a very long list. Instead, let's keep a separate "potentially colliding names"
set of strings where all the colliding characters are translated to a single
character.
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