request.timeout.ms=<value>,session.timeout.ms=<value>,
fetch.max.wait.ms=<value>,heartbeat.interval.ms=<value>,
security.protocol=SASL_PLAINTEXT,sasl.kerberos.
service.name=<kerberos name>,sasl.mechanism=GSSAPI,
sasl.jaas.config=com.sun.security.auth.module.
Krb5Login Modulerequired useKeyTab=true 
doNotPrompt=true storeKey=true client=true
keyTab="<Keytab Location>" principal="<principal>";

request.timeout.ms
session.timeout.ms
fetch.max.wait.ms
heartbeat.interval.ms

SASL_SSL
SSL