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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8692) [AccessController] Restrict HTableDescriptor enumeration
Date Wed, 05 Jun 2013 09:30:22 GMT
Andrew Purtell created HBASE-8692:
-------------------------------------

             Summary: [AccessController] Restrict HTableDescriptor enumeration
                 Key: HBASE-8692
                 URL: https://issues.apache.org/jira/browse/HBASE-8692
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 0.98.0, 0.95.1, 0.94.9
            Reporter: Andrew Purtell
            Assignee: Andrew Purtell


Some users are concerned about having table schema exposed to every user and would like it
protected, similar to the rest of the admin operations for schema. 

This used to be hopeless because META would leak HTableDescriptors in HRegionInfo, but that
is no longer the case in 0.94+.

Consider adding CP hooks in the master for intercepting HMasterInterface#getHTableDescriptors
and HMasterInterface#getHTableDescriptors(List<String>).  Add support in the AccessController
for only allowing GLOBAL ADMIN to the first method. Add support in the AccessController for
allowing access to the descriptors for the table names in the list of the second method only
if the user has TABLE ADMIN privilege for all of the listed table names.

Then, fix the code in HBaseAdmin (and elsewhere) that expects to be able to enumerate all
table descriptors e.g. in deleteTable. A TABLE ADMIN can delete a table but won’t have GLOBAL
ADMIN privilege to enumerate the total list. So a minor fixup is needed here, and in other
places like this which make the same assumption.

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