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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6826) Plugin interface to enable delegation of HDFS authorization assertions
Date Thu, 28 Aug 2014 04:45:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14113333#comment-14113333

Alejandro Abdelnur commented on HDFS-6826:

[~jnp], then v7.4 is what you would prefer? From yesterday's call I think Daryn and I misunderstood
then that the requirement was to be able do add an additional assertion in the authorization
path, not to fully replace it.

> 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,
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.patch, HDFS-6826v8.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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