TestUserGroupInformation#testGetServerSideGroups test fails in chroot
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Key: HADOOP-7811
URL: https://issues.apache.org/jira/browse/HADOOP-7811
Project: Hadoop Common
Issue Type: Bug
Components: security, test
Affects Versions: 0.23.1
Reporter: Jonathan Eagles
Assignee: Jonathan Eagles
It is common when running in chroot to have root's group vector preserved when
running as your self.
For example
# Enter chroot
$ sudo chroot /myroot
# still root
$ whoami
root
# switch to user preserving root's group vector
$ sudo -u user -P -s
# root's groups
$ groups root
a b c
# user's real groups
$ groups user
d e f
# user's effective groups
$ groups
a b c d e f
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