[jira] [Commented] (HDFS-6826) Plugin interface to enable delegation of HDFS authorization assertions

["Suresh Srinivas (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-6826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14234457#comment-14234457 ] 

Suresh Srinivas commented on HDFS-6826:
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[~daryn], I agree with some of the comments you have made. One of the main goals from Ranger (previously Argus) perspective is to allow plugin for checking permission. This will help implement in Argus project a centralized permission model. This is lot smaller and self contained than the current scope of changes. While this discussion can continue, I want to go ahead and create a jira for the narrow scope of pluggability that Ranger is looking for.

Let me know what you guys think. I will create a separate jira, if there is general consensus.

> Plugin interface to enable delegation of HDFS authorization assertions
> ----------------------------------------------------------------------
>
>                 Key: HDFS-6826
>                 URL: https://issues.apache.org/jira/browse/HDFS-6826
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: security
>    Affects Versions: 2.4.1
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>         Attachments: HDFS-6826-idea.patch, HDFS-6826-idea2.patch, HDFS-6826-permchecker.patch, HDFS-6826v3.patch, HDFS-6826v4.patch, HDFS-6826v5.patch, HDFS-6826v6.patch, HDFS-6826v7.1.patch, HDFS-6826v7.2.patch, HDFS-6826v7.3.patch, HDFS-6826v7.4.patch, HDFS-6826v7.5.patch, HDFS-6826v7.6.patch, HDFS-6826v7.patch, HDFS-6826v8.patch, HDFS-6826v9.patch, HDFSPluggableAuthorizationProposal-v2.pdf, HDFSPluggableAuthorizationProposal.pdf
>
>
> When Hbase data, HiveMetaStore data or Search data is accessed via services (Hbase region servers, HiveServer2, Impala, Solr) the services can enforce permissions on corresponding entities (databases, tables, views, columns, search collections, documents). It is desirable, when the data is accessed directly by users accessing the underlying data files (i.e. from a MapReduce job), that the permission of the data files map to the permissions of the corresponding data entity (i.e. table, column family or search collection).
> To enable this we need to have the necessary hooks in place in the NameNode to delegate authorization to an external system that can map HDFS files/directories to data entities and resolve their permissions based on the data entities permissions.
> I’ll be posting a design proposal in the next few days.



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