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https://issues.apache.org/jira/browse/HADOOP-10849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gera Shegalov updated HADOOP-10849:
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Attachment: HADOOP-10849.v01.patch
v01 to give an idea.
> Implement conf substitution with UGI.current/loginUser
> ------------------------------------------------------
>
> Key: HADOOP-10849
> URL: https://issues.apache.org/jira/browse/HADOOP-10849
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Affects Versions: 2.4.1
> Reporter: Gera Shegalov
> Assignee: Gera Shegalov
> Attachments: HADOOP-10849.v01.patch
>
>
> 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}}
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