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Posted to common-issues@hadoop.apache.org by "Masatake Iwasaki (JIRA)" <ji...@apache.org> on 2016/03/02 03:18:18 UTC
[jira] [Commented] (HADOOP-12793) Write a new group mapping service
guide
[ https://issues.apache.org/jira/browse/HADOOP-12793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15174887#comment-15174887 ]
Masatake Iwasaki commented on HADOOP-12793:
-------------------------------------------
Thanks for the work, [~jojochuang]. The patch looks good. Just some nits.
* HadoopGroupMapping.md should be renamed to GroupsMapping.md.
* s/addtional/additional/
* s/execept/except/
> Write a new group mapping service 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, HADOOP-12793.002.patch, HADOOP-12793.003.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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