Michael Smith has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/21744 )

Change subject: IMPALA-13347: Fixes TSAN Thread Leak of Workload Management 
Thread
......................................................................


Patch Set 4:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/21744/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/21744/2//COMMIT_MSG@10
PS2, Line 10: in impala-server.h.  This thread runs until a graceful shutdown is
nit: unnecessary double space. Same on the next line.


http://gerrit.cloudera.org:8080/#/c/21744/2/be/src/service/workload-management.cc
File be/src/service/workload-management.cc:

http://gerrit.cloudera.org:8080/#/c/21744/2/be/src/service/workload-management.cc@118
PS2, Line 118:     completed_queries_shutdown_cv_.wait_for(l,
I'm not quite sure how this works. It holds workload_mgmt_threadstate_mu_ and 
doesn't release it before signaling. So there's no way another thread could 
update workload_mgmt_thread_state_ to be SHUTDOWN. So will it always wait the 
full time?


http://gerrit.cloudera.org:8080/#/c/21744/2/be/src/service/workload-management.cc@127
PS2, Line 127: workload_management_thread_
> Add DCHECK not nullptr.
Is this ever reached? We should log for both branches.


http://gerrit.cloudera.org:8080/#/c/21744/2/be/src/service/workload-management.cc@130
PS2, Line 130: workload_management_thread_->Detach();
> Will we miss logging some queries into query log table if this happen?
I agree this would be useful.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I1e95967bb6e04470a8900c9ba69080eea8aaa25e
Gerrit-Change-Number: 21744
Gerrit-PatchSet: 4
Gerrit-Owner: Jason Fehr <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Comment-Date: Tue, 03 Sep 2024 23:01:02 +0000
Gerrit-HasComments: Yes

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