[jira] [Created] (KAFKA-7764) Authentication exceptions during consumer metadata updates may not get propagated

["Jason Gustafson (JIRA)" <ji...@apache.org>]

Jason Gustafson created KAFKA-7764:
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             Summary: Authentication exceptions during consumer metadata updates may not get propagated
                 Key: KAFKA-7764
                 URL: https://issues.apache.org/jira/browse/KAFKA-7764
             Project: Kafka
          Issue Type: Bug
            Reporter: Jason Gustafson


The consumer should propagate authentication errors to the user. We handle the common case in ConsumerNetworkClient when the exception occurs in response to an explicitly provided request. However, we are missing the logic to propagate exceptions during metadata updates, which are handled internally by NetworkClient. This logic exists in ConsumerNetworkClient.awaitMetadataUpdate, but metadata updates can occur outside of this path. Probably we just need to move that logic into ConsumerNetworkClient.poll() so that errors are always checked.



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