[jira] [Created] (KAFKA-5369) Producer hangs on metadata fetch from broker in security authorization related failures and no meaningful exception is thrown

[Koelli Mungee (JIRA)]

Koelli Mungee created KAFKA-5369:
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             Summary: Producer hangs on metadata fetch from broker in security 
authorization related failures and no meaningful exception is thrown
                 Key: KAFKA-5369
                 URL: https://issues.apache.org/jira/browse/KAFKA-5369
             Project: Kafka
          Issue Type: Improvement
          Components: consumer, producer 
    Affects Versions: 0.10.0.0
            Reporter: Koelli Mungee


Debugging security related misconfigurations becomes painful since the only 
symptom is a hang trying to fetch the metadata on the producer side

at java.lang.Object.wait(Native Method) 
at org.apache.kafka.clients.Metadata.awaitUpdate(Metadata.java:129) 
at 
org.apache.kafka.clients.producer.KafkaProducer.waitOnMetadata(KafkaProducer.java:528)
 
at 
org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:441) 
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:430) 
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:353)

There are no meaningful errors on the broker side either. Enabling 
Djavax.net.debug=all and/or Dsun.security.krb5.debug=true is an option, however 
this should be improved to get a meaningful error.



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