[jira] [Updated] (IMPALA-11891) Update executor group min size without restarting coordinators

["YifanZhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-11891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

YifanZhang updated IMPALA-11891:
--------------------------------
    Fix Version/s: Impala 4.3.0

> Update executor group min size without restarting coordinators
> --------------------------------------------------------------
>
>                 Key: IMPALA-11891
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11891
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 4.2.0
>            Reporter: YifanZhang
>            Assignee: YifanZhang
>            Priority: Minor
>             Fix For: Impala 4.3.0
>
>
> Currently, when updating an executor group's min size, we need to restart all executors in this executor group and all coordinators. Restarting coordinators will interrupt queries running on all executor groups.
> It is necessary to restart coordinators because executor groups will never be removed from a cluster during the lifetime of an impalad and inconsistent executor group configurations will be ignored when adding a new executor: [https://github.com/apache/impala/blob/c3ed44268838f4a00624e7e7fbf6e614f0a54a48/be/src/scheduling/executor-group.cc#L89-L93] 
> We can improve this by removing empty/unused executor groups from the membership, and then new configurations of the same group names can be applied.



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

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscribe@impala.apache.org
For additional commands, e-mail: issues-all-help@impala.apache.org