All NameNode proxies have failed over

I’ve started to see the following error in Dremio. Not sure if it’s related to Hadoop or a Dremio setting:

RemoteException: No valid proxies left. All NameNode proxies have failed over.

@Ryan are you passing anything via the Dremio Hive or HDFS sources via advanced options? If yes, can you please send a screen shot? Are you also able to share core-site.xml, hdfs-site.xml from the Dremio conf folder?

Thanks for the reply, we determined it was an error on a data source. closing isue.

Thanks for the update @Ryan

@balaji.ramaswamy This issue seems to have crept back in and it doesn’t look like a data source issue after all. Should I open up a ticket in dremio.support? I can provide the information there.