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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2017/07/23 06:27:00 UTC

[jira] [Commented] (KYLIN-2736) Use multiple threads to calculate HyperLogLogPlusCounter in FactDistinctColumnsMapper

    [ https://issues.apache.org/jira/browse/KYLIN-2736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16097526#comment-16097526 ] 

Shaofeng SHI commented on KYLIN-2736:
-------------------------------------

Will this cause CPU over-subscription? How to determine the thread numbers in a mapper? Please provide detailed description.

> Use multiple threads to calculate HyperLogLogPlusCounter in FactDistinctColumnsMapper
> -------------------------------------------------------------------------------------
>
>                 Key: KYLIN-2736
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2736
>             Project: Kylin
>          Issue Type: Improvement
>    Affects Versions: v2.0.0
>            Reporter: Zhong Yanghong
>            Assignee: Zhong Yanghong
>




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