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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KYLIN-3987) Give more reducer for UHC column in fact distinct job
Date Fri, 26 Apr 2019 10:29:00 GMT

    [ https://issues.apache.org/jira/browse/KYLIN-3987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16826861#comment-16826861
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ASF GitHub Bot commented on KYLIN-3987:
---------------------------------------

Wayne1c commented on pull request #621: KYLIN-3987 Set a larger value of reducer num for fact
distinct job
URL: https://github.com/apache/kylin/pull/621
 
 
   
 
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> Give more reducer for UHC column in fact distinct job
> -----------------------------------------------------
>
>                 Key: KYLIN-3987
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3987
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: Chao Long
>            Assignee: Chao Long
>            Priority: Major
>             Fix For: v2.6.2
>
>
> The defualt value of the reducer number for UHC column in fact distinct job is too small(default
1),  the fact distinct job may be very slow, even throw OOM exception. We should give it
a large value by default.



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