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Posted to issues@drill.apache.org by "Mridul Chopra (JIRA)" <ji...@apache.org> on 2016/11/17 04:39:58 UTC

[jira] [Commented] (DRILL-4462) Slow JOIN Query On Remote MongoDB

    [ https://issues.apache.org/jira/browse/DRILL-4462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15672712#comment-15672712 ] 

Mridul Chopra commented on DRILL-4462:
--------------------------------------

Hello,

Is there any progress made to tackle the slowness of join queries using mongo db ?

Thanks

> Slow JOIN Query On Remote MongoDB
> ---------------------------------
>
>                 Key: DRILL-4462
>                 URL: https://issues.apache.org/jira/browse/DRILL-4462
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Client - CLI, Storage - MongoDB
>    Affects Versions: 1.5.0
>            Reporter: Rifat Mahmud
>         Attachments: fragmentprof.PNG
>
>
> Regardless of the number of collections in the MongoDB database, simple join query, like select * from t1, t2 where t1.a=t2.b is taking on and around 27 seconds from drill-embedded running on a single machine.
> Here are the profiles:
> https://drive.google.com/open?id=0B-J_8-KYz50mZ1NjSzlUUjR3Q0U
> https://drive.google.com/open?id=0B-J_8-KYz50mcTFpRmxKOWdfak0
> Screenshot of fragment profile has been attached.



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