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[C++] test-ubuntu-22.04-cpp-emscripten fails tests trying to construct threads (ARROW_ENABLE_THREADING should be OFF) #51687
Description
Describe the bug, including details regarding any error messages, version, and platform.
The test-ubuntu-22.04-cpp-emscripten job is failing with:
[ RUN ] MergedGeneratorErrorHookTest.InnerErrorToWaiterNotOvertakenDuringCompletion
unknown file: Failure
C++ exception with description "thread constructor failed: Resource temporarily unavailable" thrown in the test body.
[ FAILED ] MergedGeneratorErrorHookTest.InnerErrorToWaiterNotOvertakenDuringCompletion (5 ms)
[ RUN ] MergedGeneratorErrorHookTest.OuterErrorToWaiterNotOvertakenDuringCompletion
unknown file: Failure
C++ exception with description "thread constructor failed: Resource temporarily unavailable" thrown in the test body.
[ FAILED ] MergedGeneratorErrorHookTest.OuterErrorToWaiterNotOvertakenDuringCompletion (0 ms)
[ RUN ] MergedGeneratorErrorHookTest.ClaimedErrorNotOvertakenDuringCompletion
unknown file: Failure
C++ exception with description "thread constructor failed: Resource temporarily unavailable" thrown in the test body.
[ FAILED ] MergedGeneratorErrorHookTest.ClaimedErrorNotOvertakenDuringCompletion (0 ms)
[----------] 7 tests from MergedGeneratorErrorHookTest (9 ms total)
From the looks of it it seems like some tests that require threading might be running when ARROW_ENABLE_THREADING=OFF
Component(s)
C++
Activity
raulcd commentedon Oct 2, 2026
Seems related to:
cc @zanmato1984
GH-51687: [C++] Skipt tests that require threads if ARROW_ENABLE_THRE…
zanmato1984 commentedon Oct 2, 2026
Issue resolved by pull request 51688
#51688
GH-51687: [C++] Skipt tests that require threads if ARROW_ENABLE_THRE…