[IMPALA-5514] When only with ldap_password_cmd option, has invalid parameter, impala-shell runs successfully

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 2.5.0
• Fix Version/s: Impala 2.10.0
• Component/s: Clients
• Labels: newbie
• Epic Color: ghx-label-6
• Assignee: Davy Xu
• Reporter: Davy Xu
• Created: 15/Jun/17 09:17
• Updated: 11/Jul/17 15:51
• Resolved: 11/Jul/17 15:51

Description

When using impala-shell only with ldap_password_cmd option, has invalid parameter, it runs successfully as following:
impala-shell --ldap_password_cmd=abc
Starting Impala Shell without Kerberos authentication
Connected to ldapserver1.zdh.com:27000
Server version: impalad version 2.5.0-cdh5.7.1 RELEASE (build 27a4325c18c2a01c7a8097681a0eccf6d4335ea1)
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Welcome to the Impala shell. Copyright (c) 2015 Cloudera, Inc. All rights reserved.
(Impala Shell v2.5.0-cdh5.7.1 (27a4325) built on Wed Jun 1 16:06:09 PDT 2016)

You can run a single query from the command line using the '-q' option.
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The processing of only with ldap_password_cmd option ignores this parameter just like ldap_password_cmd is absent.
The ldap_password_cmd option is in the use of ldap environment to obtain ldap password. We should use ldap_password_cmd option when impala-shell using LDAP to authenticate with Impala.
So, ldap_password_cmd option will only appear if ldap option appears.