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https://issues.apache.org/jira/browse/KYLIN-3917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16960741#comment-16960741
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ASF subversion and git services commented on KYLIN-3917:
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Commit 9ecf1325068583a1eea4488eb2e499d7acd0c9db in kylin's branch
refs/heads/master from Liu Shaohui
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=9ecf132 ]
KYLIN-3917: Add max segment merge span to cleanup intermediate data of cube
building
> 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: Future
>
>
> 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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