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From "Yan Zhou (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-987) [zebra] Zebra Column Group Access Control
Date Fri, 09 Oct 2009 01:50:31 GMT

    [ https://issues.apache.org/jira/browse/PIG-987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763781#action_12763781
] 

Yan Zhou commented on PIG-987:
------------------------------

remove the hardcoded group name  from a few test scripts.  This patch and the ones in Pig-991
and Pig-986 are ready to be comitted. But please hold on commiting Pig-992 and afterwards.

> [zebra] Zebra Column Group Access Control
> -----------------------------------------
>
>                 Key: PIG-987
>                 URL: https://issues.apache.org/jira/browse/PIG-987
>             Project: Pig
>          Issue Type: New Feature
>    Affects Versions: 0.6.0
>            Reporter: Yan Zhou
>            Assignee: Yan Zhou
>         Attachments: ColumnGroupSecurity.patch, ColumnGroupSecurity.patch, ColumnGroupSecurity.patch,
TEST-org.apache.hadoop.zebra.io.TestCheckin.txt, TEST-org.apache.hadoop.zebra.mapred.TestCheckin.txt,
tmp-987-plus-991.patch
>
>
> Access Control: when processes try to read from the column groups, Zebra should be able
to handle allowed vs. disallowed user/application accesses.  The security is eventuallt granted
by corresponding  HDFS security of the data stored.
> Expected behavior when column group permissions are set:
>     When user selects only columns that they do not have permissions to access, Zebra
should return error with message "Error #: Permission denied for accessing column <column
name or names> 
> Access control applies to an entire column group, so all columns in a column group have
same permissions. 

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