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https://issues.apache.org/jira/browse/IMPALA-7851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16695063#comment-16695063
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Tim Armstrong commented on IMPALA-7851:
---------------------------------------
I think there might be a couple of things going on here. One thing I'm noticing
is that the fetch operations in the test are disproportionately slow, and it
seems to be correlated with the number of output columns. The hang reproduces
more readily with "SELECT *" vs selecting a smaller number of columns.
I have a suspicion that the weird timing might be exposing a race in the query
lifecycle that's unrelated to the patch, but I'm going to figure out the cause
of the slowness first.
> TestFetchFirst::test_query_stmts_v6 hang during core asan build
> ---------------------------------------------------------------
>
> Key: IMPALA-7851
> URL: https://issues.apache.org/jira/browse/IMPALA-7851
> Project: IMPALA
> Issue Type: Bug
> Affects Versions: Impala 3.2.0
> Reporter: Bikramjeet Vig
> Assignee: Tim Armstrong
> Priority: Blocker
> Labels: broken-build
>
> {noformat}
> 22:11:44 hs2/test_fetch_first.py::TestFetchFirst::test_parallel_insert <-
> ../../../../../../../data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/tests/hs2/hs2_test_suite.py
> PASSED
> 22:11:44 hs2/test_fetch_first.py::TestFetchFirst::test_non_query_stmts <-
> ../../../../../../../data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/tests/hs2/hs2_test_suite.py
> PASSED
> 22:11:44 hs2/test_fetch_first.py::TestFetchFirst::test_constant_query_stmts
> <-
> ../../../../../../../data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/tests/hs2/hs2_test_suite.py
> PASSED
> 22:11:44 hs2/test_fetch_first.py::TestFetchFirst::test_query_stmts_v1 <-
> ../../../../../../../data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/tests/hs2/hs2_test_suite.py
> PASSED
> 20:12:39 hs2/test_fetch_first.py::TestFetchFirst::test_query_stmts_v6 <-
> ../../../../../../../data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/tests/hs2/hs2_test_suite.py
> Build timed out (after 1,440 minutes).
> {noformat}
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