[jira] [Commented] (SENTRY-2170) update the thrift interface between sentry server and HDFS sentry client

["kalyan kumar kalvagadda (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SENTRY-2170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16423170#comment-16423170 ] 

kalyan kumar kalvagadda commented on SENTRY-2170:
-------------------------------------------------

[~spena] and [~LinaAtAustin] 
{noformat}
(Full Snapshot) PermissionsUpdate -> TPermissionsUpdate -> Collection<TPrivilegeChanges>
(Del Update) List<PermissionsUpdate> -> PermissionsUpdate -> TPermissionsUpdate -> TPrivilegeChanges
One instance of TPrivilegeChanges has the permission information about a HMS object

1. Retrieving full/Delta snapshot from persistent store. Construct 
    1. (Full Snapshot)PermissionsImage
        1. Role Image
        2. Object ->Role,permission mapping
        3. Create thrift version to send stover to NN pug-in
            1. PermissionsUpdate
                1. TPermissionsUpdate is updated with permissions and role information from PermissionsImage
                    1. TPrivilegeChanges (one instance per HMS object)
                    2. TRoleChanges(one Entry for each role which has role -> group Mapping)
    2. Retrieving Delta Update from persistent store. 
        1. deltaRetriever#retrieveDelta
        2. Get all the PermissionsUpdate entries from MSentryPermChange table
            1. Each PermissionsUpdate object corresponds to one permission change.
{noformat}

> update the thrift interface between sentry server and HDFS sentry client
> ------------------------------------------------------------------------
>
>                 Key: SENTRY-2170
>                 URL: https://issues.apache.org/jira/browse/SENTRY-2170
>             Project: Sentry
>          Issue Type: Sub-task
>          Components: Sentry
>    Affects Versions: 2.1.0
>            Reporter: kalyan kumar kalvagadda
>            Assignee: kalyan kumar kalvagadda
>            Priority: Major
>         Attachments: SENTRY-2170.001.patch
>
>
> Thrift interface between sentry server and hdfs sentry client should be updated to send the send user privileges as well.



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