malthe commented on a change in pull request #22685:
URL: https://github.com/apache/airflow/pull/22685#discussion_r840672356
##########
File path: airflow/dag_processing/processor.py
##########
@@ -231,6 +231,9 @@ def _kill_process(self) -> None:
if self._process.is_alive() and self._process.pid:
self.log.warning("Killing DAGFileProcessorProcess (PID=%d)",
self._process.pid)
os.kill(self._process.pid, signal.SIGKILL)
+
+ # Reap the spawned zombie
+ os.waitpid(self._process.pid, 0)
Review comment:
I don't know if there's anything here that could be racy, but there are
some details here: https://bugs.python.org/issue42558.
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