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https://issues.apache.org/jira/browse/HBASE-19154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16259184#comment-16259184
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Duo Zhang commented on HBASE-19154:
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Do not have much time to do this. Let's do it after 2.0 release.
> Scan consistency guarantee
> --------------------------
>
> Key: HBASE-19154
> URL: https://issues.apache.org/jira/browse/HBASE-19154
> Project: HBase
> Issue Type: Umbrella
> Components: Compaction, scan
> Affects Versions: 3.0.0
> Reporter: Duo Zhang
>
> For now, although we already pass mvcc back to client, and client will send
> this mvcc to RS when reopening a scanner, we still can not make sure that the
> region/row level consistency is safe as compaction happens after region move
> but before the scanner reopen may delete some cells which mvcc are before the
> mvcc given by client.
> This issue aims to try our best to guarantee region level consistency, and if
> not, we need to tell users we can not make it.
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