[HADOOP-7811] TestUserGroupInformation#testGetServerSideGroups test fails in chroot

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.1
• Fix Version/s: 0.23.1
• Component/s: security, test
• Target Version/s: 0.23.1
• Hadoop Flags: Reviewed
• Assignee: Jonathan Turner Eagles
• Reporter: Jonathan Turner Eagles
• Created: 09/Nov/11 21:08
• Updated: 05/Mar/12 02:49
• Resolved: 16/Nov/11 06:31

Description

It is common when running in chroot to have root's group vector preserved when running as your self.

For example

1. Enter chroot
   $ sudo chroot /myroot

1. still root
   $ whoami
   root

1. switch to user preserving root's group vector
   $ sudo -u user -P -s

1. root's groups
   $ groups root
   a b c

1. user's real groups
   $ groups user
   d e f

1. user's effective groups
   $ groups
   a b c d e f
   -------------------------------