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https://issues.apache.org/jira/browse/HADOOP-7522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13080536#comment-13080536
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Owen O'Malley commented on HADOOP-7522:
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I suspect the right answer is just changing the defaults to be away from
user-specific values in any of the default config values. I don't see any
fundamental harm in setting the user.name value.
> Abandon support for expanding ${user.name} in configs
> -----------------------------------------------------
>
> Key: HADOOP-7522
> URL: https://issues.apache.org/jira/browse/HADOOP-7522
> Project: Hadoop Common
> Issue Type: Wish
> Components: conf
> Affects Versions: 0.23.0
> Reporter: Aaron T. Myers
>
> In practice, I find that the presence of ${user.name} in configs is rarely
> helpful, and often causes issues.
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