hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4236) Regression: HDFS-4171 puts artificial limit on username length
Date Sat, 08 Dec 2012 13:09:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13527129#comment-13527129

Hudson commented on HDFS-4236:

Integrated in Hadoop-Hdfs-trunk #1248 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1248/])
    HDFS-4236. Remove artificial limit on username length introduced in HDFS-4171. Contributed
by Alejandro Abdelnur. (Revision 1418356)

     Result = FAILURE
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1418356
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-httpfs/src/main/java/org/apache/hadoop/lib/wsrs/UserProvider.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-httpfs/src/test/java/org/apache/hadoop/lib/wsrs/TestUserProvider.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/UserParam.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/resources/TestParam.java

> 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
>            Assignee: Alejandro Abdelnur
>            Priority: Blocker
>              Labels: regression
>             Fix For: 2.0.3-alpha
>         Attachments: HDFS-4171.patch
> 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

View raw message