https://community.cloudera.com/t5/Support-Questions/kerberos-livy-quot-requirement-failed-Kerberos-requires-livy/m-p/179831#M142077 <P>If you klist that keytab file, does it show entries for livy/&lt;current hostname&gt;@LBG.COM?</P><PRE>klist -kte /etc/security/keytabs/livy.headless.keytab</PRE><P>Also, if you look at the running Livy server process, does the relevant user or group have read access to /etc/security/keytabs/livy.headless.keytab?</P> Fri, 19 May 2017 23:00:17 GMT rlevas 2017-05-19T23:00:17Z