I'm supporting engineers who have running long running jobs that are storing their
data via NFSv4 with krb5 sec. In some cases, the ticket needs to be renewal for more
than a day. Possibly several days.
Some of the users in this category are accustomed to using "kinit -R". This is
obviously done on per-user basis, and some care is taken to whittle down the privileges of
the principal to what it needs for access the data.