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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/04/01 20:28:00 UTC

[jira] [Updated] (IMPALA-9591) Automatically cap pre-aggregation memory consumption to match estimate

     [ https://issues.apache.org/jira/browse/IMPALA-9591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated IMPALA-9591:
----------------------------------
    Summary: Automatically cap pre-aggregation memory consumption to match estimate  (was: Automatically cap pre-aggregation memory consumption to match)

> Automatically cap pre-aggregation memory consumption to match estimate
> ----------------------------------------------------------------------
>
>                 Key: IMPALA-9591
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9591
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>            Reporter: Tim Armstrong
>            Priority: Major
>              Labels: admission-control, resource-management
>
> IMPALA-2945 tracks some issues with preagg estimates. One option to get estimates to match actual memory consumption is to cap actual memory consumption. IMPALA-9530 adds this mechanism controlled by a flag.



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