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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (KYLIN-2932) Simplify the thread model for in-memory cubing
Date Fri, 25 May 2018 09:23:00 GMT


ASF subversion and git services commented on KYLIN-2932:

Commit 614edbafa9367592efb4244094f2147be00059b3 in kylin's branch refs/heads/KYLIN-2932-master
from U-CORP\\\\mingmwang
[;h=614edba ]

APACHE-KYLIN-2932: Simplify the thread model for in-memory cubing

Signed-off-by: shaofengshi <>

> 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
>             Fix For: v2.4.0
>         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
> 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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