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https://issues.apache.org/jira/browse/KAFKA-3208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15136490#comment-15136490
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ASF GitHub Bot commented on KAFKA-3208:
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Github user granthenke closed the pull request at:
https://github.com/apache/kafka/pull/869
> Default security.inter.broker.protocol based on configured
> advertised.listeners
> -------------------------------------------------------------------------------
>
> Key: KAFKA-3208
> URL: https://issues.apache.org/jira/browse/KAFKA-3208
> Project: Kafka
> Issue Type: Improvement
> Affects Versions: 0.9.0.0
> Reporter: Grant Henke
> Assignee: Grant Henke
>
> Currently the default security.inter.broker.protocol is PLAINTEXT. However,
> when enabling SASL or SSL on a cluster it is common to not include a
> PLAINTEXT listener which causes Kafka to fail startup (after KAFKA-3194).
> To reduce the number of issues and make the configuration more convenient we
> could default this value, if not explicitly set, to the first protocol
> defined in the advertised.listeners configuration.
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