Receive multiple of the same error when logging into Hue
GSSError: (('Unspecified GSS failure. Minor code may provide more information', 851968),
('No Kerberos credentials available (default cache: /var/run/hue/hue_krb5_ccache)
hue.ini is configured for Kerberos
[[kerberos]]
hue_keytab=/etc/security/keytabs/hue.keytab
hue_principal=hue/_HOST@REALM
[beeswax]
auth_username=hue
use_sasl=true
[hadoop]
[[hdfs_clusters]]
[[[default]]]
security_enabled=true
[[yarn_clusters]]
[[[default]]]
# Change this if your YARN cluster is Kerberos-secured
security_enabled=true
Hue is running as the hue user and has access to the credentials cache directory and the keytab referenced in the configuration.
Receiving this error likely means the kt_renewer service isn't running.
This means kinit isn't being executed and there are no credentials stored for Hue to use.
By default Hue (4.6) caches Kerberos credentials in a file at: /var/run/hue/hue_krb5_ccache
To verify if any credentials have been cached you can use klist
klist "/var/run/hue/hue_krb5_ccache"
Ticket cache: FILE:/var/run/hue/hue_krb5_ccache
Default principal: hue/_HOST@REALM
Valid starting Expires Service principal
03/05/2020 16:06:38 03/06/2020 16:06:38 krbtgt/_HOST@REALM
You should also execute the renewer manually to see if it throws any errors such as permissions problems.
Run kt_renewer
/opt/hue/build/env/bin/hue kt_renewer