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https://issues.apache.org/jira/browse/KYLIN-3987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16826988#comment-16826988
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ASF GitHub Bot commented on KYLIN-3987:
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nichunen 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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