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https://issues.apache.org/jira/browse/HBASE-18446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104876#comment-16104876
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Anoop Sam John commented on HBASE-18446:
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For the compaction purpose also, each of the region's compaction would have 
selected the corresponding Half file and its reader for doing the compaction 
work (Scan for compaction).  As of 2.0 design, we wont archive the compacted 
away files immediately after the compaction. The old scans will continue using 
them.  See CompactedHFilesDischarger.
The new compacted files will have proper data as per the split daughter regions 

> Mark StoreFileScanner as IA.Private
> -----------------------------------
>
>                 Key: HBASE-18446
>                 URL: https://issues.apache.org/jira/browse/HBASE-18446
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Coprocessors
>            Reporter: Duo Zhang
>             Fix For: 2.0.0, 3.0.0, 2.0.0-alpha-2
>
>
> Do not see any reason why it is marked as IA.LimitedPrivate. It is not 
> referenced in any CPs.



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