Sergey created KAFKA-16995:
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Summary: The listeners broker parameter incorrect documentation
Key: KAFKA-16995
URL: https://issues.apache.org/jira/browse/KAFKA-16995
Project: Kafka
Issue Type: Bug
Affects Versions: 3.6.1
Environment: Kafka 3.6.1
Reporter: Sergey
We are using Kafka 3.6.1 and the
[KIP-797|https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=195726330]
describes configuring listeners with the same port and name for supporting
IPv4/IPv6 dual-stack.
Documentation link:
https://kafka.apache.org/36/documentation.html#brokerconfigs_listeners
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As I understand it, Kafka should allow us to set the listener name and listener
port to the same value if we configure dual-stack.
But in reality, the broker returns an error if we set the listener name to the
same value.
Error example:
{code:java}
java.lang.IllegalArgumentException: requirement failed: Each listener must have
a different name, listeners:
CONTROLPLANE://0.0.0.0:9090,SSL://0.0.0.0:9093,SSL://[::]:9093
at scala.Predef$.require(Predef.scala:337)
at kafka.utils.CoreUtils$.validate$1(CoreUtils.scala:214)
at kafka.utils.CoreUtils$.listenerListToEndPoints(CoreUtils.scala:268)
at kafka.server.KafkaConfig.listeners(KafkaConfig.scala:2120)
at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:1807)
at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:1604)
at kafka.Kafka$.buildServer(Kafka.scala:72)
at kafka.Kafka$.main(Kafka.scala:91)
at kafka.Kafka.main(Kafka.scala) {code}
I've tried to set the listeners to: "SSL://0.0.0.0:9093,SSL://[::]:9093"
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