Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/23343 )

Change subject: IMPALA-14348: Fix TSAN issue after IMPALA-14327
......................................................................

IMPALA-14348: Fix TSAN issue after IMPALA-14327

IMPALA-14327 reveal TSAN issue in impala-hs2-server.cc.
ClientRequestState::returns_result_set() was accessed without holding
ClientRequestState::lock_ in impala-hs2-server.cc.

This patch fix the issue by obtaining ClientRequestState::lock_ first
before accessing ClientRequestState::returns_result_set() and
ClientRequestState::result_metadata(). Both accesses are done inside
ImpalaServer::SetupResultsCacheing so lock_ only need to be obtained
once. Filed IMPALA-14359 to follow up investigation.

Testing:
Run and pass TSAN build.

Change-Id: I41fc25cea5b4ef7b4b9daac54b8665fa76ceb1cd
Reviewed-on: http://gerrit.cloudera.org:8080/23343
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
---
M be/src/runtime/query-driver.cc
M be/src/service/client-request-state.h
M be/src/service/impala-hs2-server.cc
M be/src/service/impala-server.h
4 files changed, 30 insertions(+), 14 deletions(-)

Approvals:
  Impala Public Jenkins: Looks good to me, approved; Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I41fc25cea5b4ef7b4b9daac54b8665fa76ceb1cd
Gerrit-Change-Number: 23343
Gerrit-PatchSet: 7
Gerrit-Owner: Riza Suminto <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>

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