You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@kylin.apache.org by "Shao Feng Shi (Jira)" <ji...@apache.org> on 2022/12/16 11:13:00 UTC

[jira] [Updated] (KYLIN-5285) Performance optimization for sharby column

     [ https://issues.apache.org/jira/browse/KYLIN-5285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shao Feng Shi updated KYLIN-5285:
---------------------------------
    Summary: Performance optimization for sharby column  (was: has only one file after prune cuboid by sharby column, but launch 17 task when query)

> Performance optimization for sharby column
> ------------------------------------------
>
>                 Key: KYLIN-5285
>                 URL: https://issues.apache.org/jira/browse/KYLIN-5285
>             Project: Kylin
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: v4.0.1
>            Reporter: Liu Zhao
>            Assignee: Liu Zhao
>            Priority: Major
>         Attachments: image-2022-10-28-20-41-27-066.png, image-2022-10-28-20-41-37-702.png, image-2022-10-28-20-41-52-544.png, image-2022-10-28-20-42-01-694.png, image-2022-10-28-20-42-15-822.png, screenshot-1.png
>
>
> 使用了shardby，然后通过shardby裁剪到一个文件，该文件只有30多M（但这个cuboid下有17文件），结果查询的时候提交了17个task，只有一个有task在处理数据，其余都在空跑。



--
This message was sent by Atlassian Jira
(v8.20.10#820010)