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https://issues.apache.org/jira/browse/PHOENIX-1701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15156207#comment-15156207
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James Taylor commented on PHOENIX-1701:
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Yes, all isolated to BaseResultIterators.getParallelScans(). This would be an
awesome contribution!
> Adapt guidepost selection at compile time
> -----------------------------------------
>
> Key: PHOENIX-1701
> URL: https://issues.apache.org/jira/browse/PHOENIX-1701
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Lars Hofhansl
>
> Currently we tweak the guide post width for the partition size we want - for
> example it just changed to 100mb to 300mb because FAST_DIFF is used by
> default.
> Instead it might better to collect more guideposts (maybe even as low as
> every 10mb) and then combine them at compile time into larger chunks.
> If we store them correctly the adjacent guideposts would be stored in order
> in the stats table and hence we would scan that table until we have a size we
> want (in terms of chunk size).
> The more information we have, the better, we can combine smaller guideposts,
> but we cannot split larger ones because we lack information.
> Just filing as a brainstorming issue for debate.
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