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Posted to issues@kylin.apache.org by "Dong Li (JIRA)" <ji...@apache.org> on 2016/05/21 07:35:12 UTC

[jira] [Updated] (KYLIN-1623) Make the hll precision for data samping configurable

     [ https://issues.apache.org/jira/browse/KYLIN-1623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dong Li updated KYLIN-1623:
---------------------------
    Issue Type: Improvement  (was: New Feature)

> Make the hll precision for data samping configurable
> ----------------------------------------------------
>
>                 Key: KYLIN-1623
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1623
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Job Engine
>            Reporter: Shaofeng SHI
>            Assignee: Shaofeng SHI
>             Fix For: v1.5.2
>
>
> now kylin uses hll(14) for sampling; it should be configurable at cube level for small or large cubes. Property name "kylin.job.cubing.inmem.sampling.hll.precision", default be 14; allowed values: 10, 12, 14, 16



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