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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2019/04/08 03:28:00 UTC

[jira] [Assigned] (KYLIN-3917) Add max segment merge span to cleanup intermediate data of cube building

     [ https://issues.apache.org/jira/browse/KYLIN-3917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shaofeng SHI reassigned KYLIN-3917:
-----------------------------------

    Assignee: Liu Shaohui

> Add max segment merge span to cleanup intermediate data of cube building 
> -------------------------------------------------------------------------
>
>                 Key: KYLIN-3917
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3917
>             Project: Kylin
>          Issue Type: Improvement
>            Reporter: Liu Shaohui
>            Assignee: Liu Shaohui
>            Priority: Major
>
> Currently the intermediate data of building cube can not be deleted for it maybe used for later cubing merging. But it result in double space used in HDFS.
> In actual scenario, we only need month-level segment span in maximum.
> So if a span of segment is larger than a month, we think it don't need be merged and the intermediate data can be deleted.
> So we can add a config kylin.cube.max-segment-merge.span,  default is -1.



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