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From "Selvamohan Neethiraj (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6826) Plugin interface to enable delegation of HDFS authorization assertions
Date Fri, 15 Aug 2014 23:46:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14099357#comment-14099357
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Selvamohan Neethiraj commented on HDFS-6826:
--------------------------------------------

Alejandro,

The use case for externalizing the authorization:  If a enterprise keeps their metadata details
such as what is "confidential" in a separate system and provide access control based on the
metadata, it is important to have a plug-able authorization module, which can use the metadata
from external system and provide authorization to users/groups based on their own logic. I
do not expect every organization to have a custom/plug-able authorization. But, this would
allow security vendors and system integrators to expand security scope for hdfs.

> 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-6826v3.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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