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Posted to issues-all@impala.apache.org by "YifanZhang (Jira)" <ji...@apache.org> on 2023/07/25 04:35:00 UTC

[jira] [Created] (IMPALA-12312) Support using non-default executor groups for planner

YifanZhang created IMPALA-12312:
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             Summary: Support using non-default executor groups for planner
                 Key: IMPALA-12312
                 URL: https://issues.apache.org/jira/browse/IMPALA-12312
             Project: IMPALA
          Issue Type: Improvement
            Reporter: YifanZhang


An Impala cluster can contain multiple executor group sets, including a default executor group and non-default executor groups. The current planner always tends to pick the default executor group for scheduling a query because only the default executor group is included in the update message that is sent to the frontend.

When we set a non-default request_pool for a query, the generated plan is still based on the default executor group, which leads to an inaccurate execution plan.

This can be improved by sending all configured executor groups' information to the frontend.



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