[IMPALA-12552] impala-shell should not call encode on kerberos_host_fqdn in python 3 env

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 4.3.0
• Fix Version/s: Impala 4.4.0
• Labels: impala-shell
• Epic Color: ghx-label-14
• Assignee: Gergely Farkas
• Reporter: Gergely Farkas
• Created: 09/Nov/23 08:45
• Updated: 31/May/24 17:18
• Resolved: 20/Nov/23 14:59

Description

This is a python 3 compatibility problem: 
In Pyhton 2, the sasl layer does not accept unicode strings, so we have to explicitly encode the kerberos_host_fqdn string to ascii. However, this is not the case in python 3, where we have to omit the encode, because if we don't do this, impala-shell wants to use the following service principal during Kerberos auth: 

my_service_name/b'my.kerberos.host.fqdn'@MY.REALM

instead of the correct one, which is:

my_service_name/[e-mail]

Issue Links

• is duplicated by: IMPALA-13118 Removing explicit ascii encoding of kerberos_host_fqdn when -b/--kerberos_host_fqdn is used