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https://issues.apache.org/jira/browse/HBASE-7661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell resolved HBASE-7661.
-----------------------------------

    Resolution: Won't Fix

Now that we have tags and HFile V3, it's not necessary to use out of line 
storage for cell ACLs. Resolving as wontfix.

> [Per-KV security] Store and apply per cell ACLs in a shadow CF
> --------------------------------------------------------------
>
>                 Key: HBASE-7661
>                 URL: https://issues.apache.org/jira/browse/HBASE-7661
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Coprocessors, security
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>         Attachments: 7661-0.94.patch, 7661.patch
>
>
> Coprocessor based implementation of per-KV security that extends the existing 
> AccessController and ACL model to cover per cell permissions. More comments 
> on this approach can be found on the parent issue. Stores and consults the 
> additional metadata in a shadow column family managed by the 
> AccessController. Preserves existing user facing semantics. Does not require 
> any changes to core code except, optionally, the security shell commands, for 
> testing and prototyping convenience.



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