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https://issues.apache.org/jira/browse/KYLIN-2797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16239590#comment-16239590
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Billy Liu commented on KYLIN-2797:
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+1
> Remove MR engine V1
> -------------------
>
> Key: KYLIN-2797
> URL: https://issues.apache.org/jira/browse/KYLIN-2797
> Project: Kylin
> Issue Type: Improvement
> Components: Job Engine
> Reporter: Shaofeng SHI
> Assignee: Shaofeng SHI
> Priority: Minor
> Labels: scope
> Fix For: v2.3.0
>
>
> MR Engine V1 was the MR Cubing algorith in Kylin 1.3 and before. Kylin 1.5
> introduced the V2 engine together with sharded HBase storage, which has
> proven having better performance than V1. Now I didn't see a reason to keep
> the V1 engine in Kylin code base. Suggest to remove them.
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