Log errors getting Unix UGI
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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
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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