[AMBARI-19087] Clean up how dfs.cluster.administrators is handled wrt user/group creation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.5.0
• Assignee: Andrew Onischuk Assign to me
• Reporter: Andrew Onischuk
• Created: 05/Dec/16 15:35
• Updated: 08/Dec/16 12:44
• Resolved: 08/Dec/16 12:01

Description

dfs.cluster.administrators handles values of the following format:

CL for the admins, this configuration is used to control who can access the default servlets in the namenode, etc. The value should be a comma separated list of users and groups. The user list comes first and is separated by a space followed by the group list, e.g. "user1,user2 group1,group2". Both users and groups are optional, so "user1", " group1", "", "user1 group1", "user1,user2 group1,group2" are all valid (note the leading space in " group1"). '' grants access to all users and groups, e.g. '', '* ' and ' *' are all valid.

Ambari cannot handle * value correctly it will try to create a group or user
named '*'.
Also Ambari cannot correctly create groups if there are multiple spaces
instead of one.

Issue Links

• links to: ReviewBoard