kaxil commented on code in PR #65738:
URL: https://github.com/apache/airflow/pull/65738#discussion_r3501681481
##########
task-sdk/src/airflow/sdk/execution_time/supervisor.py:
##########
@@ -690,6 +690,16 @@ def start(
pid = os.fork()
if pid == 0:
+ # Put the task-runner into its own session so its PGID == its own
+ # PID. The supervisor can then deliver signals to the whole tree
+ # via os.killpg() in kill(), reaching every subprocess the
+ # task-runner spawned (e.g. venv children from
+ # PythonVirtualenvOperator). Without this, a SIGTERM from kill()
+ # only hits the task-runner and any Popen children are reparented
+ # to PID 1 and leak as orphans. See issue #65505.
+ with suppress(OSError):
+ os.setsid()
Review Comment:
(just thinking out loud -- we can surely do it in separate PR too but
wanted to raise so I don't forget either :) )
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