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https://issues.apache.org/jira/browse/PHOENIX-2307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14946267#comment-14946267
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Lars Hofhansl commented on PHOENIX-2307:
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The HalfStoreFiles created by a split that point back to the original HFile are
just temporary, as soon as possible HBase runs a compaction to compact the
HalfStoreFiles away. Not sure now whether that's a major compaction, though.
> Build means to set min/max timestamp on store files on region splits.
> ---------------------------------------------------------------------
>
> Key: PHOENIX-2307
> URL: https://issues.apache.org/jira/browse/PHOENIX-2307
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Samarth Jain
>
> On region splits, there possibly could be cases where Phoenix would be able
> to set the min/max timestamps itself. One such scenario being when the part
> of row key prior to the timestamp hasn't changed in the region that is to be
> split. Or when the leading part of the row key is timestamp, with or without
> salting. In such cases, it would be relatively easy to figure out what the
> min and max timestamps should be on the newly created child regions. To build
> this we would need HBase apis to set the min/max timestamps on the HFiles
> which could be then called in coprocessor hooks for splits.
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