[jira] [Resolved] (PHOENIX-1701) Adapt guidepost selection at compile time

["James Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-1701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Taylor resolved PHOENIX-1701.
-----------------------------------
    Resolution: Not A Problem

Since our guideposts are absolute byte values, we no longer need this.

> 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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