Aleksandr Shulman created HBASE-9973:
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Summary: [ACL]: Users with 'Admin' ACL permission will lose
permissions after upgrade to 0.96.x from 0.94.x or 0.92.x
Key: HBASE-9973
URL: https://issues.apache.org/jira/browse/HBASE-9973
Project: HBase
Issue Type: Bug
Components: security
Affects Versions: 0.96.0, 0.96.1
Reporter: Aleksandr Shulman
Fix For: 0.96.1
In our testing, we have uncovered that the ACL permissions for users with the
'A' credential do not hold after the upgrade to 0.96.x.
This is because in the ACL table, the entry for the admin user is a permission
on the '_acl_' table with permission 'A'. However, because of the namespace
transition, there is no longer an '_acl_' table. Therefore, that entry in the
hbase:acl table is no longer valid.
Example:
{code}hbase(main):002:0> scan 'hbase:acl'
ROW COLUMN+CELL
TestTable column=l:hdfs, timestamp=1384454830701, value=RW
TestTable column=l:root, timestamp=1384455875586, value=RWCA
_acl_ column=l:root, timestamp=1384454767568, value=C
_acl_ column=l:tableAdmin, timestamp=1384454788035, value=A
hbase:acl column=l:root, timestamp=1384455875786, value=C
{code}
In this case, the following entry becomes meaningless:
{code} _acl_ column=l:tableAdmin, timestamp=1384454788035,
value=A {code}
As a result,
Proposed fix:
I see the fix being relatively straightforward. As part of the migration,
change any entries in the '_acl_' table with key '_acl_' into a new row with
key 'hbase:acl', all else being the same. And the old entry would be deleted.
This can go into the standard migration script that we expect users to run.
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