[jira] [Created] (KAFKA-9257) Allow listeners to bind on same port but different interfaces

["Gérald Quintana (Jira)" <ji...@apache.org>]

Gérald Quintana created KAFKA-9257:
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             Summary: Allow listeners to bind on same port but different interfaces
                 Key: KAFKA-9257
                 URL: https://issues.apache.org/jira/browse/KAFKA-9257
             Project: Kafka
          Issue Type: Improvement
          Components: network
    Affects Versions: 2.3.1
            Reporter: Gérald Quintana


It's not possible to bind two listeners to two distinct network interfaces using the same port
{code:java}
listeners=ONE://<ip1>:9092,TWO://<ip2>:9092
advertised.listeners=ONE://<hostname1>:9092,TWO://<hostname2>:9092
listener.security.protocol.map=ONE:PLAINTEXT,TWO:PLAINTEXT{code}
Kafka server returns an error:
{noformat}
[2019-12-02 13:07:18,256] ERROR Exiting Kafka due to fatal exception (kafka.Kafka$)
 java.lang.IllegalArgumentException: requirement failed: Each listener must have a different port, listeners: ONE://<ip1>:9092,TWO://<ip2>:9092
 at scala.Predef$.require(Predef.scala:281)
 at kafka.utils.CoreUtils$.validate$1(CoreUtils.scala:305)
 at kafka.utils.CoreUtils$.listenerListToEndPoints(CoreUtils.scala:316)
 at kafka.server.KafkaConfig.advertisedListeners(KafkaConfig.scala:1407)
 at kafka.server.KafkaConfig.validateValues(KafkaConfig.scala:1482)
 at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:1460)
 at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:1114)
 at kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:1094)
 at kafka.server.KafkaServerStartable$.fromProps(KafkaServerStartable.scala:28)
 at kafka.Kafka$.main(Kafka.scala:68)
 at kafka.Kafka.main(Kafka.scala){noformat}
 

 

 



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