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From "Jason Gustafson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-6289) NetworkClient should not return internal failed api version responses from poll
Date Fri, 01 Dec 2017 04:02:00 GMT
Jason Gustafson created KAFKA-6289:
--------------------------------------

             Summary: NetworkClient should not return internal failed api version responses
from poll
                 Key: KAFKA-6289
                 URL: https://issues.apache.org/jira/browse/KAFKA-6289
             Project: Kafka
          Issue Type: Bug
            Reporter: Jason Gustafson
            Assignee: Jason Gustafson


In the AdminClient, if the initial ApiVersion request sent to the broker fails, we see the
following obscure message:
{code}
[2017-11-30 17:18:48,677] ERROR Internal server error on -2: server returned information about
unknown correlation ID 0.  requestHeader = {api_key=18,api_version=1,correlation_id=0,client_id=adminclient-3}
(org.apache.kafka.clients.admin.KafkaAdminClient)
{code}
What's happening is that the response to the internal ApiVersion request which is received
in NetworkClient is mistakenly being sent to the upper layer (the admin client in this case).
The admin wasn't expecting it, so we see this message. Instead, the request should be handled
internally in NetworkClient.



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