Richard Wise created KAFKA-9272:
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Summary: Error when trying to connect to SSL port using PLAINTEXT
is very confusing
Key: KAFKA-9272
URL: https://issues.apache.org/jira/browse/KAFKA-9272
Project: Kafka
Issue Type: Bug
Components: clients
Affects Versions: 2.2.1
Reporter: Richard Wise
I accidentally forgot to set `security.protocol` to SSL when connecting to an
SSL port, so connected via PLAINTEXT. I expected the Kafka client to fail
immediately with a message about mismatched security protocols, but instead it
failed saying that the topic does not exist and auto-creation was not enabled.
This error message is very misleading and leads developers to think that the
problem is the server configuration, not the client network security settings.
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