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https://issues.apache.org/jira/browse/KYLIN-3452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shaofeng SHI reassigned KYLIN-3452:
-----------------------------------
Assignee: Shaofeng SHI
> Optimize spark cubing memory footprint
> --------------------------------------
>
> Key: KYLIN-3452
> URL: https://issues.apache.org/jira/browse/KYLIN-3452
> Project: Kylin
> Issue Type: Improvement
> Components: Spark Engine
> Reporter: Shaofeng SHI
> Assignee: Shaofeng SHI
> Priority: Major
> Fix For: v2.5.0
>
>
> Noticed that there are some steps can be optimized:
> 1) Cuboid.findForMandatory() will create new object each time, which this can
> be cached;
> 2) Executor repeatedly load dictionary, not hit the cache;
> 3) NDCuboidBuilder and RowkeyEncoder, can optimize for less array copy;
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