@RajaChintala You have to make below changes. HADOOP_OPTS="-Dsun.security.krb5.debug=true" For more details follow below docs: https://docs.cloudera.com/documentation/enterprise/5-10-x/topics/cdh_sg_debug_sun_kerberos_enable.html https://spark.apache.org/docs/2.0.0/running-on-yarn.html#troubleshooting-kerberos https://spark.apache.org/docs/2.0.0/running-on-yarn.html#troubleshooting-kerberos ... View more