[HADOOP-10849] Implement conf substitution with UGI.current/loginUser

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.4.1
• Component/s: conf
• Assignee: Gera Shegalov
• Reporter: Gera Shegalov
• Created: 16/Jul/14 06:07
• Updated: 07/Jan/17 01:56

Description

Many path properties and similar in hadoop code base would be easily configured if we had substitutions with UserGroupInformation#getCurrentUser. Currently we often use less elegant concatenation code if we want to express currentUser as opposed to ${user.name} system property representing the user owning the JVM.

This JIRA proposes the corresponding substitution support for keys ugi.current.user and ugi.login.user