Hi Kafka devs, I found that when KafkaClient establishes a sasl connection, if `java.security.auth.login.config` is used and multiple LoginModules are configured in JaasConfigFile (regardless of whether these LoginModules are of the same type), KafkaClient will get the wrong username&password from JaasConfigFile. As a result, the connection authentication fails. The communication between brokers also faces the same problem, which will cause the entire cluster to be unable to provide external services.
For more detailed analysis, please visit Jira https://issues.apache.org/jira/browse/KAFKA-13422 Welcome everyone to actively participate in the discussion I would be very grateful if you can give some suggestions Best Regards RivenSun
