question Is there a minimum length for a user name in Ranger? in Support Questions

Is there a minimum length for a user name in Ranger?

TerryP — Fri, 23 Oct 2015 23:11:47 GMT

Creating an internal user name of 5 digits is not working correctly.

Re: Is there a minimum length for a user name in Ranger?

jstraub — Fri, 23 Oct 2015 23:13:28 GMT

What you mean by "is not working correctly"? Any errors on the UI or in the log?

It should be possible, I have created users like solr, admin, user1, ...

Re: Is there a minimum length for a user name in Ranger?

TerryP — Fri, 23 Oct 2015 23:21:24 GMT

The response from the UI is "enter a valid user name". I will try again.

Re: Is there a minimum length for a user name in Ranger?

jstraub — Fri, 23 Oct 2015 23:28:11 GMT

Minimum is 2 letters

Maximum > 30 letters

Just tested it on my cluster. What version of Ranger do you have?

Re: Is there a minimum length for a user name in Ranger?

TerryP — Fri, 23 Oct 2015 23:43:16 GMT

It was not a length problem. The user is not a member of the group he is being added into. There is an odd mix of LDAP users and local groups in the test environment. You should enter the length as the answer since that is the question I asked. Then I can accept the answer. Thanks.

Re: Is there a minimum length for a user name in Ranger?

nsabharwal — Sat, 24 Oct 2015 00:23:55 GMT

Do you mean username like "12345"?

Re: Is there a minimum length for a user name in Ranger?

mneethiraj — Sat, 24 Oct 2015 00:45:50 GMT

Ranger in HDP-2.2 requires usernames to begin with an alphabet. This was relaxed in HDP-2.3 (RANGER-318), which would allow usernames to start with an alphabet or a number.

Re: Is there a minimum length for a user name in Ranger?

nsabharwal — Mon, 19 Aug 2019 12:55:45 GMT

@Terry@hortonworks.com

See this..I can add user ab, abc, 1234 . The only user I could not add was only a or b

Re: Is there a minimum length for a user name in Ranger?

nsabharwal — Sat, 24 Oct 2015 07:44:53 GMT

@Madhan Neethiraj

See my latest reply ...Do you think we are missing something at UI level?

Re: Is there a minimum length for a user name in Ranger?

mneethiraj — Sat, 24 Oct 2015 12:33:40 GMT

@Neeraj - the username should be at least 2 character long. Hence Ranger Admin failed to accept names with a singe character - like "a" or "b".

The issue faced by @terry@hortonworks.com is HDP-2.2 specific, where Ranger requires the username should begin with an alphabet. @terry@hortonworks.com - can you please confirm if you see this in HDP-2.2 and if starting a username with an alphabet works?

Re: Is there a minimum length for a user name in Ranger?

nsabharwal — Sun, 25 Oct 2015 02:28:38 GMT

@terry@hortonworks.com

What version of Ambari and HDP are you using? Also, see my latets reply.

Re: Is there a minimum length for a user name in Ranger?

TerryP — Mon, 26 Oct 2015 23:22:05 GMT

@Madhan Neethiraj

this is an HDP 2.2.8 install and creating a username that starts with an alphabetic character does work.

Re: Is there a minimum length for a user name in Ranger?

vperiasamy — Tue, 27 Oct 2015 23:06:34 GMT

@terry@hortonworks.com @Madhan Neethiraj

This restriction was prior to HDP 2.2.4