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https://issues.apache.org/jira/browse/KAFKA-4121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joaquin Casares resolved KAFKA-4121.
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Resolution: Duplicate
> Allow creating broker listeners from hostname
> ---------------------------------------------
>
> Key: KAFKA-4121
> URL: https://issues.apache.org/jira/browse/KAFKA-4121
> Project: Kafka
> Issue Type: Improvement
> Components: config
> Affects Versions: 0.10.0.1
> Reporter: Joaquin Casares
> Priority: Minor
>
> I'm attempting to start a docker container using the parameter:
> {CODE}
> advertised.listeners = PLAINTEXT://dockercomposeproject_kafka_1:9092
> {CODE}
> However, I get this error:
> {CODE}
> kafka_1 | java.lang.IllegalArgumentException: Error creating broker
> listeners from 'PLAINTEXT://dockercomposeproject_kafka_1:9092': Unable to
> parse PLAINTEXT://dockercomposeproject_kafka_1:9092 to a broker endpoint
> kafka_1 | at
> kafka.server.KafkaConfig.validateUniquePortAndProtocol(KafkaConfig.scala:954)
> kafka_1 | at
> kafka.server.KafkaConfig.getAdvertisedListeners(KafkaConfig.scala:985)
> kafka_1 | at
> kafka.server.KafkaConfig.<init>(KafkaConfig.scala:927)
> kafka_1 | at
> kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:743)
> kafka_1 | at
> kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:740)
> kafka_1 | at
> kafka.server.KafkaServerStartable$.fromProps(KafkaServerStartable.scala:28)
> kafka_1 | at kafka.Kafka$.main(Kafka.scala:58)
> kafka_1 | at kafka.Kafka.main(Kafka.scala)
> {CODE}
> My workaround is to set my envar (for a wurstmeister/kafka-docker container,
> which is unrelated to this ticket) to:
> {CODE}
> KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://`getent hosts
> dockercomposeproject_kafka_1 | awk '{ print $1 }'`:9092
> {CODE}
> Which resolves to:
> {CODE}
> advertised.listeners = PLAINTEXT://172.18.0.4:9092
> {CODE}
> This advertised.listeners resolution allows my docker container to start as
> expected.
> Could sending in hostnames, instead of strict IP addresses, be supported for
> the advertised.listeners setting?
> Thanks!
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