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https://issues.apache.org/jira/browse/KYLIN-3278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16390686#comment-16390686
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Wang Cheng commented on KYLIN-3278:
-----------------------------------
I will revert the relevant commits of KYLIN-3084, and use "set
hive.merge.tezfiles to true" to workaround the TEZ UNION ALL issue.
> Kylin should not distribute hive table by random at Step1
> ---------------------------------------------------------
>
> Key: KYLIN-3278
> URL: https://issues.apache.org/jira/browse/KYLIN-3278
> Project: Kylin
> Issue Type: Improvement
> Components: Job Engine
> Affects Versions: v2.3.0
> Reporter: Chuqian Yu
> Assignee: Wang Cheng
> Priority: Major
>
> Hi,Kylin team.
> When I upgrade from 2.2.0 to 2.3.0 ,I found that the step.1 "Create
> Intermediate Flat Hive Table" of cube build was much slower than before,
> because Kylin distribute hive table by random when created it in version
> 2.3.0 . I wander is it necessary? Because
> kylin.source.hive.redistribute-flat-table was set to true by default, so we
> will do the distribution job at Step.2 "Redistribute Flat Hive Table".
> Best regards,
> Chuqian Yu
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