Allen Wittenauer created HDFS-4236:
--------------------------------------
Summary: Regression: HDFS-4171 puts artificial limit on username
length
Key: HDFS-4236
URL: https://issues.apache.org/jira/browse/HDFS-4236
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 2.0.3-alpha
Reporter: Allen Wittenauer
HDFS-4171 made the invalid assumption that there is a common limit on user
names at the UNIX level. Almost all modern systems, when running under a
64-bit kernel, use a pointer instead of a char array in the passwd struct.
This makes usernames essentially unlimited.
Additionally, IIRC, the only places where HDFS and the OS interact where the
username is touched is during group lookup.
This limit is artificial and should be removed. There is a very high risk that
we will break users, especially service accounts used for automated processes.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
