[jira] [Created] (HADOOP-13441) Document LdapGroupsMapping keystore password properties

["Wei-Chiu Chuang (JIRA)" <ji...@apache.org>]

Wei-Chiu Chuang created HADOOP-13441:
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             Summary: Document LdapGroupsMapping keystore password properties
                 Key: HADOOP-13441
                 URL: https://issues.apache.org/jira/browse/HADOOP-13441
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Wei-Chiu Chuang
            Priority: Minor


A few properties are not documented.
{{hadoop.security.group.mapping.ldap.ssl.keystore.password}}
This property is used as an alias to get password from credential providers, or, fall back to using the value as password in clear text. There is also a caveat that credential providers can not be a HDFS-based file system, as mentioned in HADOOP-11934, to prevent cyclic dependency issue.
This should be documented in core-default.xml and GroupsMapping.md

{{hadoop.security.credential.clear-text-fallback}}
This property controls whether or not to fall back to storing credential password as cleartext.
This should be documented in core-default.xml.

{{hadoop.security.credential.provider.path}}
This is mentioned in _CredentialProvider API Guide_, but not in core-default.xml

The "Supported Features" in _CredentialProvider API Guide_ should link back to GroupsMapping.md#LDAP Groups Mapping 



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