![]() 22:47:33,574 ERROR o.a. - SASL negotiation failure ![]() Resolution: The Keytab either has wrong permissions or ownership.Įven the keytab has the right permission,Ĭheck all directories above the file recursively and make sure the owner (usually Dremio service user) can read the file. Issue #1Ĭaused by: : No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt) Kerberos by default turns on impersonation so proxy settings have to be defined. Add the following properties to the core-site.xml file.Įven if impersonation is turned off and the service user Dremio is running and present on all the Hadoop nodes,.Depending on the deployment, either symlink the core-site.xml file orĪdd a local copy of the core-site.xml file under Dremio’s configuration directory (same directory as nf file).Generate a Keytab file for the Dremio Kerberos principal.This is the user that runs Dremio on the Hadoop cluster. Create a Kerberos principal for the Dremio service user.This configuration is required to add a Kerbero-ized HDFS or Hive data source. The following configuration must be done on the Dremio-side. When customer runs a kerbero-ized cluster (like CDH, HDP), ![]() Dremio Configuration for a Kerbero-ized Cluster This section provides a Knowledge Base article on Kerberos setup and troubleshooting. ![]()
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