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Posted to issues@kylin.apache.org by "albertoramon (JIRA)" <ji...@apache.org> on 2017/12/14 16:58:00 UTC

[jira] [Commented] (KYLIN-2950) Change build engine smoothly

    [ https://issues.apache.org/jira/browse/KYLIN-2950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16291170#comment-16291170 ] 

albertoramon commented on KYLIN-2950:
-------------------------------------

Is this feature forgotten in 2.3?

> Change build engine smoothly
> ----------------------------
>
>                 Key: KYLIN-2950
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2950
>             Project: Kylin
>          Issue Type: Bug
>    Affects Versions: v2.0.0
>            Reporter: fengYu
>            Assignee: fengYu
>         Attachments: 0001-KYLIN-2950-Change-build-engine-smoothly.patch
>
>
> Currently, we can not change build engine without disable cube and purging all existing segments. But it is expensive。
> After my test building cube with MR engine and Spark engine, there generate the same result, and Merge job always use mr engine. Hence, I think take engineType as a part of cube's Signature is improper。
> I change the code and modify cube json. it work will with MR and spark engine Alternately。
> TO BE DONE：modify web UI.



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