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https://issues.apache.org/jira/browse/HDFS-6826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alejandro Abdelnur updated HDFS-6826:
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Attachment: HDFS-6826v3.patch
Jitendra, attaching v3 patch, in this patch i've moving the checkpermission
logic to the plugin and the FsPemissionChecker does delegate to the plugin.
Still the FSDirectory is exposed in the API.
Between v2 and v3 I prefer v2.
Still I would argue we shouldn't allow replacing the permission checker logic,
to ensure consistent check behavior. I don't have a use case for having a
different permission check logic, do you? If nothing in sight at the moment,
then we can table that till is needed.
Thoughts?
> 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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