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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6826) Plugin interface to enable delegation of HDFS authorization assertions
Date Wed, 27 Aug 2014 23:56:59 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alejandro Abdelnur updated HDFS-6826:
-------------------------------------

    Attachment: HDFS-6826v7.5.patch

v7.5 version, as per Daryn's (offline) feedback undoing all FsPermissionChecker changes and
adding a call to the plugin during permission check.

I have 2 additional action items: 

1. see if special handling is required during edit log replay with v7.
2. toy with a v9 where interception is done at permission checker and filestatus creation
level.

> 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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