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https://issues.apache.org/jira/browse/HADOOP-8450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286929#comment-13286929
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Todd Lipcon commented on HADOOP-8450:
-------------------------------------
AFAIK this was part of Herriot, which I don't think runs anymore with trunk.
Given it lacks an active maintainer and I'm not aware of anyone using it, I
think we should remove src/test/system.
> tidy up src/test/system/c++/runAs
> ---------------------------------
>
> Key: HADOOP-8450
> URL: https://issues.apache.org/jira/browse/HADOOP-8450
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Colin Patrick McCabe
> Priority: Trivial
>
> runAs is a binary in the hadoop-common project. It seems to allow you to run
> a hadoop daemon as another user. However, it requires setuid privileges in
> order to do this.
> * Do we still need this binary? Who is using it and are there better
> solutions out there? My understanding is that setuid binaries are something
> we generally try to avoid.
> * If we do need it, can we add some documentation about it somewhere?
> * Should this binary be in the src/test directory? It doesn't seem to be
> testing anything.
> Hopefully that covers everything...
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