[root@impala-sasl-1 ~]# kinit -kt /tmp/todd.kt kudu/$(hostname -f)
[root@impala-sasl-1 ~]# kinit -R ; klist -f
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: kudu/impala-sasl-1.vpc.cloudera.com@VPC.CLOUDERA.COM

Valid starting       Expires              Service principal
08/21/2017 18:40:49  08/21/2017 18:41:19  krbtgt/VPC.CLOUDERA.COM@VPC.CLOUDERA.COM
	renew until 08/21/2017 18:41:47, Flags: FRIT
[root@impala-sasl-1 ~]# kinit -R ; klist -f
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: kudu/impala-sasl-1.vpc.cloudera.com@VPC.CLOUDERA.COM

Valid starting       Expires              Service principal
08/21/2017 18:40:52  08/21/2017 18:41:22  krbtgt/VPC.CLOUDERA.COM@VPC.CLOUDERA.COM
	renew until 08/21/2017 18:41:47, Flags: FRIT
[root@impala-sasl-1 ~]# date
Mon Aug 21 18:40:55 PDT 2017
[root@impala-sasl-1 ~]# date
Mon Aug 21 18:40:59 PDT 2017
[root@impala-sasl-1 ~]# date
Mon Aug 21 18:41:13 PDT 2017
[root@impala-sasl-1 ~]# date
Mon Aug 21 18:41:17 PDT 2017
[root@impala-sasl-1 ~]# kinit -R ; klist -f
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: kudu/impala-sasl-1.vpc.cloudera.com@VPC.CLOUDERA.COM

Valid starting       Expires              Service principal
08/21/2017 18:41:20  08/21/2017 18:41:47  krbtgt/VPC.CLOUDERA.COM@VPC.CLOUDERA.COM
	Flags: FRIT