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https://issues.apache.org/jira/browse/HBASE-15368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15174824#comment-15174824
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Dave Latham commented on HBASE-15368:
-------------------------------------

Writing our multiple files in our TODO list as well, so let us know if you 
start on that (we'll do the same).  It will be great for major compaction, 
though for minor compaction may not be helpful unless done very carefully due 
to the seq id correctness requirements (i.e. only do it if minor compacting all 
files for a single window, and then only write out 2 files)

Using minTimestamp instead of maxTimestamp will not fix the problem with 
relative windows, just shifts it to pulling in new data into the older windows 
and then HFiles.

> Add relative window support
> ---------------------------
>
>                 Key: HBASE-15368
>                 URL: https://issues.apache.org/jira/browse/HBASE-15368
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Compaction
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>         Attachments: HBASE-15368.patch
>
>
> To better determine 'hot' data.



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