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From "Dapeng Sun (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SENTRY-498) Sentry authorization V2 via Hive authorization framework
Date Wed, 03 Jun 2015 02:34:49 GMT

    [ https://issues.apache.org/jira/browse/SENTRY-498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14570168#comment-14570168
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Dapeng Sun commented on SENTRY-498:
-----------------------------------

Hi [~Huang Xiaomeng], are you still working on this ticket? If not, do you think it is possible
for me and Colin take over this jira and its subtasks?

> Sentry authorization V2 via Hive authorization framework
> --------------------------------------------------------
>
>                 Key: SENTRY-498
>                 URL: https://issues.apache.org/jira/browse/SENTRY-498
>             Project: Sentry
>          Issue Type: New Feature
>            Reporter: Xiaomeng Huang
>            Assignee: Xiaomeng Huang
>         Attachments: SENTRY-498.003.patch
>
>
> Currently Sentry grant/revoke privileges via hook DDLTask, and do authorization via HiveSemanticAnalyzerHook.
Now hive has a pluggable authorization framework via exposing some interfaces HiveAccessController
and HiveAuthorizationValidator. HiveAccessController is used to grant/revoke roles and privileges.
HiveAuthorizationValidator is used to do fine-grained authorization. 
> Advantages to use this framework to grant/revoke privileges and do authorization:
> - This framework is very convenient to use by external authorization system. 
> - Using this framework will be better accepted by community.
> - We don't need to take efforts to add so many hooks. 
> - Some hooks has limitations. e.g. For column level security, we can't get accessed cloumns
from query via HiveSemanticAnalyzerHook, so I extend the readEntity to put accessed columns
into it(HIVE-7730). But if we use this framework, we don't need to extend the readEntity,
we can just get accessed columns from ColumnAccessInfo directly. 
> I will not remove the old sentry authorization framework, I will just add a new authorizationV2
via implement Hive authorization framework. If all the e2e tests passed, we can mark the old
authorization deprecated.



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