[jira] [Created] (HADOOP-13102) Update GroupsMapping documentation to reflect the new changes

["Anu Engineer (JIRA)" <ji...@apache.org>]

Anu Engineer created HADOOP-13102:
-------------------------------------

             Summary: Update GroupsMapping documentation to reflect the new changes
                 Key: HADOOP-13102
                 URL: https://issues.apache.org/jira/browse/HADOOP-13102
             Project: Hadoop Common
          Issue Type: Bug
          Components: documentation
    Affects Versions: 2.8.0
            Reporter: Anu Engineer
             Fix For: 2.8.0


We need to update this section in the groupsMapping.md
{noformat}
Line 84:

The implementation does not attempt to resolve group hierarchies. Therefore, a user must be an explicit member of a group object
in order to be considered a member.
{noformat} 

With changes in Hadoop-12291 this is no longer true since we will have the ability to walk the group hierarchies.

We also should modify this line 
{noformat}
Line :  81
It is possible to set a maximum time limit when searching and awaiting a result.
Set `hadoop.security.group.mapping.ldap.directory.search.timeout` to 0 if infinite wait period is desired. Default is 10,000 milliseconds (10 seconds).
{noformat}

we might want to document how the new settings affects the timeoout.

and also add the new settings into this doc.
{noformat}
 <name>hadoop.security.group.mapping.ldap.search.group.hierarchy.levels</name>
{noformat}





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