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https://issues.apache.org/jira/browse/KAFKA-18624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18014782#comment-18014782
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John Luo commented on KAFKA-18624:
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Hi [~divijvaidya] , I'd like to work on this issue.
I've assigned it to myself and will submit a patch soon.
> Add validation for advertised listeners
> ---------------------------------------
>
> Key: KAFKA-18624
> URL: https://issues.apache.org/jira/browse/KAFKA-18624
> Project: Kafka
> Issue Type: Improvement
> Reporter: Divij Vaidya
> Assignee: John Luo
> Priority: Major
>
> Users of Apache Kafka can configure the advertised listeners [1]on each
> broker. It is possible to set an incorrect configuration here. The updated
> (incorrect) configuration becomes effective on next restart of the broker.
> The motivation is this Jira is to fail fast for cases where we are 100% sure
> that the added configuration is incorrect. The validation should be added
> near to
> [https://github.com/apache/kafka/blob/410065a65df2716e563429577dc2d3bcaa0c7c9a/core/src/main/scala/kafka/server/KafkaConfig.scala#L649]
>
> The implementor of this ticket can choose the validations that we should
> include, but as a starter, we can fail the config update if all the brokers
> have the same advertised listener.
> [1]
> [https://kafka.apache.org/documentation.html#brokerconfigs_advertised.listeners]
>
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