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https://issues.apache.org/jira/browse/HBASE-12914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14298896#comment-14298896
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Andrew Purtell commented on HBASE-12914:
----------------------------------------

The *only* reason any of the mentioned interfaces are "unstable", relative to 
any other change we have made such as region replicas, API refactorings, load 
pushback, etc. etc. is specifically when HFile V3 was introduced out of an 
abundance of caution we explicitly said it would be experimental for the 
duration of the 0.98 release. The discussion above has gotten way out of hand 
in my opinion.

> Mark public features that require HFilev3 Unstable in 0.98, warn in upgrade 
> section
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-12914
>                 URL: https://issues.apache.org/jira/browse/HBASE-12914
>             Project: HBase
>          Issue Type: Bug
>          Components: API, documentation
>    Affects Versions: 0.98.6, 0.98.7, 0.98.8, 0.98.9
>            Reporter: Sean Busbey
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Critical
>             Fix For: 1.0.1, 0.98.11
>
>         Attachments: HBASE-12914-branch-1.patch, HBASE-12914.patch
>
>
> There are several features in 0.98 that require enabling HFilev3 support. 
> Some of those features include new extendable components that are marked 
> IA.Public.
> Current practice has been to treat these features as experimental. This has 
> included pushing non-compatible changes to branch-1 as the API got worked out 
> through use in 0.98.
> * Update all of the IA.Public classes involved to make sure they are 
> IS.Unstable in 0.98.
> * Update the ref guide section on upgrading from 0.98 -> 1.0 to make folks 
> aware of these changes.



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