Github user prabhjyotsingh commented on the issue:
https://github.com/apache/zeppelin/pull/2737
Does it not requires renew of keytab? Or this takes care of it ?
```
env.put("ZEPPELIN_SERVER_KERBEROS_KEYTAB", keytab);
env.put("ZEPPELIN_SERVER_KERBEROS_PRINCIPAL", principal);
```---
