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Posted to issues@kylin.apache.org by "XiaoXiang Yu (JIRA)" <ji...@apache.org> on 2019/05/17 05:29:00 UTC

[jira] [Assigned] (KYLIN-4007) Kylin concurrently builds a global dictionary for too long

     [ https://issues.apache.org/jira/browse/KYLIN-4007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

XiaoXiang Yu reassigned KYLIN-4007:
-----------------------------------

    Assignee: XiaoXiang Yu

> Kylin concurrently builds a global dictionary for too long
> ----------------------------------------------------------
>
>                 Key: KYLIN-4007
>                 URL: https://issues.apache.org/jira/browse/KYLIN-4007
>             Project: Kylin
>          Issue Type: Bug
>          Components: Job Engine
>    Affects Versions: v2.6.1
>            Reporter: mouxingya
>            Assignee: XiaoXiang Yu
>            Priority: Minor
>         Attachments: WechatIMG20.png
>
>
> When a dimension (user_id) is accurately calculated at the same time, the original data is in the order of millions, and the rowkey has the encoding type fixed_lengrh and length 100. It took a few hours or even failed in the build dimension dictionary step. After investigation, it was found that there are concurrent processes that want to obtain the lock corresponding to the cube / dict path, resulting in a deadlock.



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