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Posted to issues-all@impala.apache.org by "Riza Suminto (Jira)" <ji...@apache.org> on 2021/03/03 00:48:00 UTC

[jira] [Resolved] (IMPALA-9856) Enable result spooling by default

     [ https://issues.apache.org/jira/browse/IMPALA-9856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Riza Suminto resolved IMPALA-9856.
----------------------------------
    Fix Version/s: Impala 4.0
       Resolution: Fixed

> Enable result spooling by default
> ---------------------------------
>
>                 Key: IMPALA-9856
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9856
>             Project: IMPALA
>          Issue Type: Task
>          Components: Backend
>            Reporter: Sahil Takiar
>            Assignee: Riza Suminto
>            Priority: Major
>             Fix For: Impala 4.0
>
>
> Result spooling has been relatively stable since it was introduced, and it has several benefits described in IMPALA-8656. It would be good to enable it by default.
> I looked into doing this a while ago, and there are a bunch of tests that rely on the "fetch one row batch at a time" behavior. Those tests fail when result spooling is enabled.
> The remaining linked tasks in IMPALA-8656 should be completed as well before enabling result spooling by default.



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