[HDFS-4983] Numeric usernames do not work with WebHDFS FS

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.3.0
• Component/s: webhdfs
• Labels: patch
• Hadoop Flags: Reviewed
• Release Note: Add a new configuration property "dfs.webhdfs.user.provider.user.pattern" for specifying user name filters for WebHDFS.
• Assignee: Yongjun Zhang
• Reporter: Harsh J
• Created: 12/Jul/13 03:56
• Updated: 04/Feb/17 21:56
• Resolved: 07/Dec/13 21:26

Description

Per the file hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/UserParam.java, the DOMAIN pattern is set to: ^[A-Za-z_][A-Za-z0-9._-]*[$]?$.

Given this, using a username such as "123" seems to fail for some reason (tried on insecure setup):

[123@host-1 ~]$ whoami
123
[123@host-1 ~]$ hadoop fs -fs webhdfs://host-2.domain.com -ls /
-ls: Invalid value: "123" does not belong to the domain ^[A-Za-z_][A-Za-z0-9._-]*[$]?$
Usage: hadoop fs [generic options] -ls [-d] [-h] [-R] [<path> ...]

Issue Links

• relates to: HDFS-11391 Numeric usernames do no work with WebHDFS FS (write access)