Hello ,  I configure consumeKafka_2_0 processor with the Kerberos configuration. I have 4 node Nifi cluster. There are node specific keytab principal , and I made node specific jaas.config  and placed on each node. My jaas.config looks like below:  KafkaClient { com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true storeKey=true keyTab="/path-to-keytab/nifi.keytab" serviceName="kafka" principal="nifi/node-name@xxx.COM"; };   I made the entry to NiFi Node Advanced Configuration Snippet (Safety Valve) for staging/bootstrap.conf.xml by :   java.arg.15=-Djava.security.auth.login.config=pathto jaas.config  and restarted nifi cluster. I am not getting any error on NiFi but when I put the message on Kafka , it is not reading. I made entry of topic name, group Id and offset reset to earliest.    I am getting below error in nifi logs :   WARN org.apache.kafka.clients.NetworkClient: [Consumer clientId=consumer-2, groupId=xxx-xxx] Bootstrap broker host-id:9092 (id: -1 rack: null) disconnected 2022-01-10 14:18:58,570 WARN org.apache.kafka.clients.NetworkClient: [Consumer clientId=consumer-2, groupId=xxx-xxx] Bootstrap broker host-id:9092 (id: -1 rack: null) disconnected.    My understanding is its Kerberos configuration error.  Any help on correct configuration and how to get headless key tab will be appreciated.    ... View more