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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12793) Introduce undocumented group mapping implementations in HDFS Permissions Guide
Date Fri, 12 Feb 2016 22:09:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15145394#comment-15145394
] 

Hadoop QA commented on HADOOP-12793:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 10s {color} | {color:blue}
Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green}
The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 33s {color} | {color:red}
hadoop-hdfs in trunk failed. {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 26s {color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color}
| {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 21s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 1m 42s {color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12787737/HADOOP-12791.001.patch
|
| JIRA Issue | HADOOP-12793 |
| Optional Tests |  asflicense  mvnsite  |
| uname | Linux de04fd57b834 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 1de1641 |
| mvnsite | https://builds.apache.org/job/PreCommit-HADOOP-Build/8613/artifact/patchprocess/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-HADOOP-Build/8613/artifact/patchprocess/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt
|
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/8613/console |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Introduce undocumented group mapping implementations in HDFS Permissions Guide
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-12793
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12793
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 2.7.2
>            Reporter: Wei-Chiu Chuang
>            Assignee: Wei-Chiu Chuang
>              Labels: ldap, supportability
>         Attachments: HADOOP-12791.001.patch
>
>
> LdapGroupsMapping has lots of configurable properties and is thus fairly complex in nature.
_HDFS Permissions Guide_ has a minimal introduction to LdapGroupsMapping, with reference to
"More information on configuring the group mapping service is available in the Javadocs."
> However, its Javadoc provides no information about how to configure it. Core-default.xml
has descriptions for each property, but still lacks a comprehensive tutorial. Without a tutorial/guide,
these configurable properties would be buried under the sea of properties.
> Both Cloudera and HortonWorks has some information regarding LDAP group mapping:
> http://www.cloudera.com/documentation/enterprise/latest/topics/cm_sg_ldap_grp_mappings.html
> http://hortonworks.com/blog/hadoop-groupmapping-ldap-integration/
> But neither cover all configurable features, such as using SSL with LDAP, and POSIX group
semantics.



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