Chuan Liu created HADOOP-8455:
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Summary: Address user name format on domain joined Windows machines
Key: HADOOP-8455
URL: https://issues.apache.org/jira/browse/HADOOP-8455
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 1.1.0, 0.24.0
Reporter: Chuan Liu
Assignee: Ivan Mitic
Priority: Minor
For a domain joined Windows machine, user name along is not a unique
identifier. User name plus domain name is need in order to unique identify the
user. For example, we can have both ‘Win1\Alex’ and ‘Redmond\Alex’ on a
computer named Win1 that joins Redmond domain. In order to avoid ambiguity,
‘whoami’ on Windows and the new ‘winutils’ created in
[Hadoop-8235|https://issues.apache.org/jira/browse/HADOOP-8235] both return
[domain]\[username] as the username. In Hadoop, we only use user name right
now. This may lead to some inconsistency, and production bugs if users of the
same name exist on the machine.
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