Bikramjeet Vig has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/10060 )

Change subject: IMPALA-5216: Make admission control queuing async
......................................................................


Patch Set 8:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/10060/7/be/src/service/client-request-state.cc
File be/src/service/client-request-state.cc:

http://gerrit.cloudera.org:8080/#/c/10060/7/be/src/service/client-request-state.cc@1147
PS7, Line 1147: void ClientRequestState::FinishExecQueryOrDmlRequest() {
              : #ifndef NDEBUG
              :   SleepIfSetInDebugOptions(schedule_->query_options(), 
SLEEP_BEFORE_ADMISSION_MS);
              : #endif
              :   // Remove if-check after IMPALA-5814.
              :   if (ExecEnv::GetInstance()->admission_controller() != 
nullptr) {
              :     Status admit_status = 
ExecEnv::GetInstance()->admission_controller()->AdmitQuery(
              :         schedule_.get(), &admit_outcome_);
              :
              : #ifndef NDEBUG
              :     SleepIfSetInDebugOptions(schedule_->query_options(), 
SLEEP_AFTER_ADMISSION_MS);
              : #endif
> Given how small the window is, I think it's better to go with the simpler a
Yes, it is equivalent to cancellation happening right after this check, which 
would be caught by the cancellation check at Line 1173



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I989cf5b259afb8f5bc5c35590c94961c81ce88bf
Gerrit-Change-Number: 10060
Gerrit-PatchSet: 8
Gerrit-Owner: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Comment-Date: Fri, 11 May 2018 23:59:59 +0000
Gerrit-HasComments: Yes

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