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https://issues.apache.org/jira/browse/HADOOP-6400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784015#action_12784015
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Kan Zhang commented on HADOOP-6400:
-----------------------------------
> we should log the exception
+1.
> Log errors getting Unix UGI
> ---------------------------
>
> Key: HADOOP-6400
> URL: https://issues.apache.org/jira/browse/HADOOP-6400
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 0.20.1, 0.21.0, 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Attachments: hadoop-6400.txt
>
>
> For various reasons, the calls out to `whoami` and `id` can fail when trying
> to get the unix UGI information. Currently it silently ignores failures and
> uses the default DrWho/Tardis ugi. This is extremely confusing for users - we
> should log the exception at warn level when the shell execs fail.
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