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https://issues.apache.org/jira/browse/KYLIN-781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liyang updated KYLIN-781:
-------------------------
    Summary: efficient in mem cubing like star cubing  (was: efficient in mem 
cubing)

> efficient in mem cubing like star cubing
> ----------------------------------------
>
>                 Key: KYLIN-781
>                 URL: https://issues.apache.org/jira/browse/KYLIN-781
>             Project: Kylin
>          Issue Type: Sub-task
>          Components: Job Engine
>            Reporter: liyang
>            Assignee: liyang
>             Fix For: v0.8.1
>
>
> Key idea
> - Assume base cuboid fit in mem (for a mapper split of course)
> - For child cuboid having common dim prefix, flow down records to child as 
> soon as completed records can be fulfilled in child
> - Keep completed records in mem as long as possible, but also save them to 
> disk in the background
> - When mem run short, pause flow down, remove completed records from mem, and 
> resume flow from disk
> - Multiple flow downs at the same time, configurable thread number



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