Unexpected error code 13 while fetching data Sprin

Question

It was working fine suddenly this issue popup since 18th Dec, could not find any clue, what suddenly this exception is coming continuously after 6 month working fine.

I am not able to reproduce in local standalone and but it comes in The docker images with micro-services and one of these communicate with Azure even hub.

I have search and found this post. In this post also reported same issue what i am facing but could not find any resolution or clue so I am posting this question.

Please refer below stacktrace:

 Error while processing: null 
java.lang.IllegalStateException: Unexpected error code 13 while fetching data 
 at org.apache.kafka.clients.consumer.internals.Fetcher.parseCompletedFetch(Fetcher.java:891) 
 at org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:528) 
 at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1154) 
 at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1111) 
 at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:699) 
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
 at java.util.concurrent.FutureTask.run(FutureTask.java:266) 

If any one any clue please suggest.

Answer 1

There was a recent change where an instance of UnknownServerException was changed to a NetworkException - this unintentionally changed consumer client retry behavior. File an issue here - https://github.com/Azure/azure-event-hubs-for-kafka/issues - with your namespace info. Thanks!