Yifan Zhang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/20273 )

Change subject: IMPALA-12312: Using correct executor group set info for planning
......................................................................


Patch Set 6:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/20273/6/be/src/scheduling/cluster-membership-mgr.cc
File be/src/scheduling/cluster-membership-mgr.cc:

http://gerrit.cloudera.org:8080/#/c/20273/6/be/src/scheduling/cluster-membership-mgr.cc@671
PS6, Line 671: // Add a default exec group set if no expected group sets were 
specified.
             :     exec_group_sets.emplace_back();
             :     
exec_group_sets.back().__set_expected_num_executors(FLAGS_num_expected_executors);
> Can we double check what is Impala rules on executor group sets configurati
AFAIK, Impala does allow users to configure a 'default' EG and other EGs in a 
cluster.

Yes, the 'default' EG here is just a fallback. If REQUEST_POOL query option is 
set to a non-existent pool(misconfiguration or some EG sets have been destroyed 
for auto-scaling), the coordinator should schedule this query on the 'default' 
group: 
https://github.com/apache/impala/blob/4d15558b5eaa69e872917c8bbf69dc1dc2146bc5/be/src/scheduling/admission-controller.cc#L2603-L2608.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ia13fb40558441d4dcc0b3e7910d3746bb61e6b80
Gerrit-Change-Number: 20273
Gerrit-PatchSet: 6
Gerrit-Owner: Yifan Zhang <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Reviewer: Yifan Zhang <[email protected]>
Gerrit-Comment-Date: Thu, 21 Sep 2023 13:36:09 +0000
Gerrit-HasComments: Yes

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