PrafullPandey06 commented on issue #70117: URL: https://github.com/apache/airflow/issues/70117#issuecomment-5047615518
You're right I shouldn't have stated the dumb-init reaping path as confirmed root cause. I don't have strace evidence showing PID 1 actually calling waitpid on the task PID, and as you pointed out, that shouldn't normally happen while the supervisor is alive. I've updated the issue title and description to reflect this. That said, the hang is reproducible and the impact is real 26–30 stuck supervisors accumulating ~8–10 GB of wasted memory per worker pod. Whatever is causing wait(timeout=0) to return None, the supervisor doesn't handle that case, and the cleanup timeout has no independent fallback. Your reproduction script confirms the exact code gap _check_subprocess_exit only handles an int return or TimeoutExpired, so None is silently ignored. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
