Hi Mark: If you continue to see these error messages even after all Kafka brokers have started up successfully, then there may be some kind of connectivity issue between between the broker nodes. If these messages do not continue after all Kafka brokers have started, you can safely ignore these messages. Thank you, Jeff Groves ... View more

@Geoffrey Shelton Okot, Yes, you answer all my question. Thank you very much for helping. ... View more

@Hoang Le, did you ever get this resolved? I am interesting in to know how to fix this issue too? ... View more

@Johny Travolta Hello! How many nodes do you have in your cluster? If more than one (and you didn't setup NiFi using Ambari) I would just check to make sure that the login-identity-provider.xml file is the same throughout (and has the correct settings). With Ambari (HDF) nodes should be configured with the same settings. My hunch is if you have a clustered environment, one node is configured properly and one or more others may not be. So when a user logs in the rest call behind the scenes may be routed to an improperly configured node. And that could explain why some work and some don't. If just one node I would check the user search base settings that you have and whether some users may not fall in the potential search for LDAP. I hope this helps! ... View more

@Andy LoPresto I have post the new question at the link below. https://community.hortonworks.com/questions/63901/cant-login-with-the-admin-user-that-configure-in-i.html#answer-63902 ... View more