Jason Gustafson created KAFKA-6289:
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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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