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From "Yuanbo Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13441) Document LdapGroupsMapping keystore password properties
Date Wed, 10 Aug 2016 03:49:22 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15414662#comment-15414662
] 

Yuanbo Liu commented on HADOOP-13441:
-------------------------------------

{quote}
This is good. Can you also add that "keystore password in `hadoop.security.group.mapping.ldap.ssl.keystore.password`"
is highly discouraged......
{quote}
This description overlaps the approach description in GroupsMapping.md. So I just add a new
short line to address it.
{quote}
The second approach aka using `hadoop.security.group.mapping.ldap.ssl.keystore.password` is
highly discouraged because it exposes the password in the configuration file.
{quote}

Others look good to me, upload v4 patch. [~jojochuang] Thanks a lot for your time!

> Document LdapGroupsMapping keystore password properties
> -------------------------------------------------------
>
>                 Key: HADOOP-13441
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13441
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.6.0
>            Reporter: Wei-Chiu Chuang
>            Assignee: Yuanbo Liu
>            Priority: Minor
>              Labels: documentation
>         Attachments: HADOOP-13441.001.patch, HADOOP-13441.002.patch, HADOOP-13441.003.patch
>
>
> 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 
> {{hadoop.security.credstore.java-keystore-provider.password-file}}
> This is the password file to protect credential files.



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