Hello Andrew Sherman, Impala Public Jenkins,

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/20474

to look at the new patch set (#3).

Change subject: IMPALA-12411: Fix data race in expr-test teardown
......................................................................

IMPALA-12411: Fix data race in expr-test teardown

TSAN ThreadSanitizer detected a data race during expr-test teardown when
a query finishes after JvmMetricCache's destructor is called. expr-test
can finish with a query still running because ImpaladQueryExecutor
closes the previous query when you start the next query and relies on
the destructor to close the last query.

expr-test creates ImpaladQueryExecutor as a global as part of setting up
an in-memory cluster (with Statestore and InProcessImpalaServer). So the
last query isn't guaranteed to be closed until global destruction, which
leads to a race with other global destruction (in this case with
JvmMetricCache while updating QueryState on query completion).

ImpaladQueryExecutor is only used in expr-test.

Change-Id: I8e289b292cb11154f1245e2b987cde0995b6243c
---
M be/src/exprs/expr-test.cc
1 file changed, 15 insertions(+), 8 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/74/20474/3
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I8e289b292cb11154f1245e2b987cde0995b6243c
Gerrit-Change-Number: 20474
Gerrit-PatchSet: 3
Gerrit-Owner: Michael Smith <[email protected]>
Gerrit-Reviewer: Andrew Sherman <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>

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