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https://issues.apache.org/jira/browse/HADOOP-1958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12561129#action_12561129
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Jim Kellerman commented on HADOOP-1958:
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Yes, it would be a method in HBaseAdmin that would be called by the shell or
some other admin UI and would work similarly to adding or deleting a column.
Note that since HColumnDescriptor is versioned, you'd have to bump the version
number and provide some kind of backward compatibility, because they are
written as part of the HRegionInfo into the root and meta tables.
> [hbase] Add a read-only attribute to columns
> --------------------------------------------
>
> Key: HADOOP-1958
> URL: https://issues.apache.org/jira/browse/HADOOP-1958
> Project: Hadoop
> Issue Type: New Feature
> Components: contrib/hbase
> Reporter: stack
> Priority: Minor
>
> One day we'll have support for per-column ACLs. Meantime, it should be
> possible to mark loaded content read-only so it doesn't get trashed
> accidentally.
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