Billy Liu updated KYLIN-2932:
    Fix Version/s: v2.3.0

> Simplify the thread model for in-memory cubing
> ----------------------------------------------
>                 Key: KYLIN-2932
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2932
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Job Engine
>            Reporter: Wang Ken
>            Assignee: Wang Ken
>            Priority: Major
>             Fix For: v2.3.0
>         Attachments: APACHE-KYLIN-2932.patch
> The current implementation uses split threads, task threads and main thread 
> to do the cube building, there is complex join and error handling logic.
> The new implement leverages the ForkJoinPool from JDK,  the event split logic 
> is handled in
> main thread. Cuboid task and sub-tasks are handled in fork join pool, cube 
> results are collected
> async and can be write to output earlier.

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