Jason Gustafson created KAFKA-12355:
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Summary: Consider inter-broker authentication error handling
Key: KAFKA-12355
URL: https://issues.apache.org/jira/browse/KAFKA-12355
Project: Kafka
Issue Type: Improvement
Reporter: Jason Gustafson
Currently authentication errors between brokers are generally considered
retriable. The broker will log an error, but continue trying to reach the other
broker. This could be improved.
For example, authentication errors (specifically from the broker to controller
in KIP-500) should probably be considered fatal during some window during
initialization. This makes it easy for users to detect problems quickly.
On the other hand, if a broker has been running for some time, we probably do
not want to fail it on the first authentication failure. If a user had added a
misconfigured controller to the cluster, it could end up taking down the whole
cluster through authentication failures.
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