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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13548) Remove recursive dependencies of credential providers in LdapGroupsMapping
Date Thu, 22 Sep 2016 21:46:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15514574#comment-15514574
] 

Wei-Chiu Chuang commented on HADOOP-13548:
------------------------------------------

This fix is certainly not as crisp as I'd like it to be, but it solves the problem. [~anu]
[~lmccay] may I ask for your review? Thanks!

> Remove recursive dependencies of credential providers in LdapGroupsMapping
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-13548
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13548
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.6.0
>            Reporter: Wei-Chiu Chuang
>            Assignee: Wei-Chiu Chuang
>         Attachments: HADOOP-13548.001.patch, HADOOP-13548.002.patch
>
>
> HADOOP-11934 discovered an infinite loop of dependencies in the use of credential provider
in LdapGroupsMapping. It added a new localjceks:// URI to workaround the problem. The assumption
is that the groups mapping is used only in NameNode and that using a local credential file
is not a problem.
> However, there are cases where Hadoop clients, such as Sqoop, may use hdfs:// based credential
provider and use LdapGroupsMapping at the same time. We should use HADOOP-12846 to exclude
hdfs:// URI credential providers.



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