Hi John,
Login from keytab is mostly expected for services. For end users, yes they use
passwords. In Kerberos (and Hadoop), it's expected for end users to execute
kinit like tool and generate ticket caches, then some methods like login from
ticket cache in UGI will do the left work and help in
to understand why this process diverges from reloginFromKeytab(),
which works just fine.
John Lilley
From: Zheng, Kai [mailto:kai.zh...@intel.com]
Sent: Monday, August 17, 2015 5:40 PM
To: user@hadoop.apache.org
Subject: RE: UserGroupInformation and login with password
Hi John,
Login from keytab is mostly e