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From "Shaofeng SHI (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (KYLIN-767) Generate statistics data for the cube segments that built with old cubing algorithm
Date Tue, 25 Aug 2015 02:19:46 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shaofeng SHI closed KYLIN-767.
------------------------------

> Generate statistics data for the cube segments that built with old cubing algorithm
> -----------------------------------------------------------------------------------
>
>                 Key: KYLIN-767
>                 URL: https://issues.apache.org/jira/browse/KYLIN-767
>             Project: Kylin
>          Issue Type: Sub-task
>          Components: Job Engine, Metadata
>    Affects Versions: v0.8.1
>            Reporter: Shaofeng SHI
>            Assignee: Shaofeng SHI
>             Fix For: v0.8.1
>
>
> In the new cubing algorithm, the cube merge will depend on the statistics data that collected
in the sampling step, to estimate the final HTable size; While for the cubes that built with
old algorithm, there is no statistics data; So, to support existing cubes/segments, Kylin
need generate the statistics from existing HTables; Then it will be doable to merge with the
new segments.



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