Question

from concurrent.futures import ProcessPoolExecutor
import time

def foo(num):
    time.sleep(0.5)
    print(num)


if __name__ == "__main__":
    while True:
        with ProcessPoolExecutor(max_workers=8) as exe:
            exe.map(foo, range(1,4))

我打算使用模块ProcessPoolExecutor。在主进程启动一段时间后，我想使用linux kill命令kill -9 main_process_pid杀死该进程。然后我发现只有主进程被杀死，而子进程仍然处于活动状态。


user     41502 41004  5 16:16 pts/202  00:00:00 python demo.py
user     42009 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42010 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42011 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42012 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42013 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42015 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42025 41502  0 16:16 pts/202  00:00:00 python demo.py
user     42026 41502  0 16:16 pts/202  00:00:00 python demo.py

运行kill -9 41502后，它变成了


user     45109     1  0 16:17 pts/202  00:00:00 python demo.py
user     45110     1  0 16:17 pts/202  00:00:00 python demo.py
user     45111     1  0 16:17 pts/202  00:00:00 python demo.py
user     45112     1  0 16:17 pts/202  00:00:00 python demo.py
user     45113     1  0 16:17 pts/202  00:00:00 python demo.py
user     45114     1  0 16:17 pts/202  00:00:00 python demo.py
user     45115     1  0 16:17 pts/202  00:00:00 python demo.py
user     45116     1  0 16:17 pts/202  00:00:00 python demo.py

我应该怎么做才能在关闭主进程时杀死所有子进程？

Answer 1

在您的示例中，您可以运行

kill -- -41502

杀死父进程和子进程。

无法使用ProcessPoolExecutor杀死子进程？

1 个答案: