Qifan Chen has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17872 )

Change subject: IMPALA-10811 RPC to submit query getting stuck for AWS NLB 
forever
......................................................................


Patch Set 25:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/17872/21/be/src/service/client-request-state.cc
File be/src/service/client-request-state.cc:

http://gerrit.cloudera.org:8080/#/c/17872/21/be/src/service/client-request-state.cc@713
PS21, Line 713:   // If this is a CTAS request, there will usually be more work 
to do
              :   // after executing the CREATE TABLE statement (the INSERT 
portion of the operation).
              :   // The exception is if the user specified IF NOT EXISTS and 
the table already
              :   // existed, in which case we do not execute the INSERT.
              :   if (catalog_op_type() == TCatalogOpType::DDL &&
              :
> I should have been more explicit. I want CTAS to go to PENDING and non-CTAS
I do not think it will work, since Exec() sets the state to RUNNING (at the end 
of the method) for sync code path, and RUNNING->RUNNING is not allowed.

So what we should do is to set the state for async only, which is exactly done 
here, to avoid another illegal transition INITIALIZED->FINISHED

I can add a comment in ExecDdlRequest() to explain this.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib57e86926a233ef13d27a9ec8d9c36d33a88a44e
Gerrit-Change-Number: 17872
Gerrit-PatchSet: 25
Gerrit-Owner: Qifan Chen <[email protected]>
Gerrit-Reviewer: Amogh Margoor <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Qifan Chen <[email protected]>
Gerrit-Comment-Date: Wed, 13 Oct 2021 23:26:33 +0000
Gerrit-HasComments: Yes

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