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From "Jonathan Eagles (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-7811) TestUserGroupInformation#testGetServerSideGroups test fails in chroot
Date Wed, 09 Nov 2011 21:09:51 GMT
TestUserGroupInformation#testGetServerSideGroups test fails in chroot

                 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

# 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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