pitrou opened a new issue, #40675: URL: https://github.com/apache/arrow/issues/40675
### Describe the bug, including details regarding any error messages, version, and platform. I sporadically get this failure when running the PyArrow tests locally: ``` __________________________________________________________________________ test_table_join_asof ___________________________________________________________________________ Traceback (most recent call last): File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/runner.py", line 340, in from_call result: Optional[TResult] = func() File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/runner.py", line 240, in <lambda> lambda: runtest_hook(item=item, **kwds), when=when, reraise=reraise File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_hooks.py", line 501, in __call__ return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_manager.py", line 119, in _hookexec return self._inner_hookexec(hook_name, methods, kwargs, firstresult) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 181, in _multicall return outcome.get_result() File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_result.py", line 99, in get_result raise exc.with_traceback(exc.__traceback__) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 166, in _multicall teardown.throw(outcome._exception) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/threadexception.py", line 87, in pytest_runtest_call yield from thread_exception_runtest_hook() File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/threadexception.py", line 63, in thread_exception_runtest_hook yield File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 166, in _multicall teardown.throw(outcome._exception) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/unraisableexception.py", line 90, in pytest_runtest_call yield from unraisable_exception_runtest_hook() File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/unraisableexception.py", line 65, in unraisable_exception_runtest_hook yield File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 166, in _multicall teardown.throw(outcome._exception) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/logging.py", line 849, in pytest_runtest_call yield from self._runtest_for(item, "call") File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/logging.py", line 832, in _runtest_for yield File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 166, in _multicall teardown.throw(outcome._exception) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/capture.py", line 883, in pytest_runtest_call return (yield) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 166, in _multicall teardown.throw(outcome._exception) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/skipping.py", line 256, in pytest_runtest_call return (yield) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 102, in _multicall res = hook_impl.function(*args) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/runner.py", line 182, in pytest_runtest_call raise e File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/runner.py", line 172, in pytest_runtest_call item.runtest() File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/python.py", line 1772, in runtest self.ihook.pytest_pyfunc_call(pyfuncitem=self) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_hooks.py", line 501, in __call__ return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_manager.py", line 119, in _hookexec return self._inner_hookexec(hook_name, methods, kwargs, firstresult) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 138, in _multicall raise exception.with_traceback(exception.__traceback__) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/pluggy/_callers.py", line 102, in _multicall res = hook_impl.function(*args) File "/home/antoine/mambaforge/envs/pyarrow/lib/python3.10/site-packages/_pytest/python.py", line 195, in pytest_pyfunc_call result = testfunction(**testargs) File "/home/antoine/arrow/dev/python/pyarrow/tests/test_table.py", line 2800, in test_table_join_asof assert r.combine_chunks() == pa.table({ AssertionError: assert pyarrow.Table\ncolA: int64\ncol2: string\ncolC: double\n----\ncolA: [[1,1,5,6,7]]\ncol2: [["a","b","a","b","f"]]\ncolC: [[null,null,null,null,null]] == pyarrow.Table\ncolA: int64\ncol2: string\ncolC: double\n----\ncolA: [[1,1,5,6,7]]\ncol2: [["a","b","a","b","f"]]\ncolC: [[1,null,null,null,null]] Full diff: pyarrow.Table colA: int64 col2: string colC: double ---- colA: [[1,1,5,6,7]] col2: [["a","b","a","b","f"]] - colC: [[1,null,null,null,null]] ? ^ + colC: [[null,null,null,null,null]] ? ^^^^ ========================================================================= short test summary info ========================================================================= FAILED pyarrow/tests/test_table.py::test_table_join_asof - assert pyarrow.Table\ncolA: int64\ncol2: string\ncolC: double\n----\ncolA: [[1,1,5,6,7]]\ncol2: [["a","b","a","b","f"]]\ncolC: [[null,null,null,null,null]] == pyarrow... ``` ### 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