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https://issues.apache.org/jira/browse/KYLIN-3917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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nichunen resolved KYLIN-3917.
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Resolution: Fixed
> 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: Shaohui Liu
> Assignee: Shaohui Liu
> Priority: Major
> Fix For: v3.0.0
>
>
> 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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