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Posted to common-issues@hadoop.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2016/02/10 23:08:18 UTC

[jira] [Created] (HADOOP-12793) Write a better tutorial for LdapGroupsMapping in HDFS Permissions Guide

Wei-Chiu Chuang created HADOOP-12793:
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             Summary: Write a better tutorial for LdapGroupsMapping in HDFS Permissions Guide
                 Key: HADOOP-12793
                 URL: https://issues.apache.org/jira/browse/HADOOP-12793
             Project: Hadoop Common
          Issue Type: Improvement
    Affects Versions: 2.7.2
            Reporter: Wei-Chiu Chuang
            Assignee: Wei-Chiu Chuang


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 description for each property, but still lacks a comprehensive tutorial.

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 both do not cover all configurable features, such as using SSL with LDAP, and POSIX group semantics.



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