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https://issues.apache.org/jira/browse/HBASE-13159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349459#comment-14349459
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Vladimir Rodionov commented on HBASE-13159:
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What is the purpose of sharing one HFile between different regions? The file
will be split during next major compaction anyway and this should happen
immediately after region's split.
> Consider RangeReferenceFiles with transformations
> -------------------------------------------------
>
> Key: HBASE-13159
> URL: https://issues.apache.org/jira/browse/HBASE-13159
> Project: HBase
> Issue Type: Brainstorming
> Reporter: Lars Hofhansl
>
> Currently we have References used by HalfStoreReaders and HFileLinks.
> For various use cases we have here we have need for a RangeReferences with
> simple transformation of the keys.
> That would allow us to map HFiles between regions or even tables without
> copying any data.
> We can probably combine HalfStores, HFileLinks, and RangeReferences into a
> single concept:
> * RangeReference = arbitrary start and stop row, arbitrary key transformation
> * HFileLink = start and stop keys set to the linked file's start/stop key,
> transformation = identity
> * (HalfStore) References = start/stop key set according to top or bottom
> reference, transformation = identity
> Note this is a *brainstorming* issue. :)
> (Could start with just references with arbitrary start/stop keys, and do
> transformations later)
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