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From "Zhong Yanghong (JIRA)" <>
Subject [jira] [Commented] (KYLIN-2932) Simplify the thread model for in-memory cubing
Date Tue, 30 Jan 2018 10:53:01 GMT


Zhong Yanghong commented on KYLIN-2932:

To enable this feature, we need to config {{kylin.job.cube-inmem-builder-class}} to be {{org.apache.kylin.cube.inmemcubing2.DoggedCubeBuilder2}}

> Simplify the thread model for in-memory cubing
> ----------------------------------------------
>                 Key: KYLIN-2932
>                 URL:
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Job Engine
>            Reporter: Wang Ken
>            Assignee: Wang Ken
>            Priority: Major
>         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
> main thread. Cuboid task and sub-tasks are handled in fork join pool, cube results are
> async and can be write to output earlier.

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