Jason Gustafson created KAFKA-6394:
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Summary: Prevent misconfiguration of advertised listeners
Key: KAFKA-6394
URL: https://issues.apache.org/jira/browse/KAFKA-6394
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
We don't really have any protection from misconfiguration of the advertised
listeners. Sometimes users will copy the config from one host to another during
an upgrade. They may remember to update the broker id, but forget about the
advertised listeners. It can be surprisingly difficult to detect this unless
you know to look for it (e.g. you might just see a lot of NotLeaderForPartition
errors as the fetchers connect to the wrong broker). It may not be totally
foolproof, but it's probably enough for the common misconfiguration case to
check existing brokers to see whether there are any which have already
registered the advertised listener.
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