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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2016/10/20 05:20:58 UTC

[jira] [Updated] (KYLIN-1917) TopN counter merge performance improvement

     [ https://issues.apache.org/jira/browse/KYLIN-1917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shaofeng SHI updated KYLIN-1917:
--------------------------------
    Fix Version/s:     (was: Backlog)
                   v1.6.0

> TopN counter merge performance improvement
> ------------------------------------------
>
>                 Key: KYLIN-1917
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1917
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Job Engine
>    Affects Versions: v1.5.2, v1.5.3
>            Reporter: Shaofeng SHI
>            Assignee: Shaofeng SHI
>             Fix For: v1.6.0
>
>
> Observed the reduce phase of cube build is slow when there is TopN counter. There should be room for performance improvement.



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