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From "Chao Wang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-987) [zebra] Zebra Column Group Access Control
Date Wed, 07 Oct 2009 00:54:31 GMT

     [ https://issues.apache.org/jira/browse/PIG-987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chao Wang updated PIG-987:
--------------------------


I ran into the same issue also.

I did a fresh checkout from apache trunk and ran "ant test", there are 14 test cases failed.

Actually, they are caused by some incompatible exception type between pig and zebra. It seems
pig already moved on with the change (IOException changed to IndexOutofBoundException), but
zebra is behind a bit in this.



> [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, TEST-org.apache.hadoop.zebra.mapred.TestCheckin.txt
>
>
> 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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