Nanda kumar updated HADOOP-15255:
    Attachment: HADOOP-15255.000.patch

> Upper/Lower case conversion support for group names in LdapGroupsMapping
> ------------------------------------------------------------------------
>                 Key: HADOOP-15255
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15255
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Nanda kumar
>            Priority: Major
>         Attachments: HADOOP-15255.000.patch
> On most LDAP servers the user and group names are case-insensitive. When we 
> use {{JniBasedUnixGroupsMappingWithFallback}} and have {{SSSD}} in place, it 
> is possible to configure {{SSSD}} to force the group names to be returned in 
> lowercase. If we use {{LdapGroupsMapping}}, we don't have any such option.
> This jira proposes to introduce a new {{hadoop.security.group.mapping}} 
> implementation based on LdapGroupsMapping which supports force lower/upper 
> case group names.

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