将 /usr/bin/sh -> dash

改成

 /usr/bin/sh -> /usr/bin/bash

即可解决.

ln  -sf  /usr/bin/bash  /usr/bin/sh  

cmd=" nohup python3 xxxx.py  > /xx/xxx.log 2>&1 &"
#在python里执行上边的命令ret = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE)log.logger.info(f"ret: {ret.pid}")ps  -ef  |  grep  pid
查看结果是 僵尸进程

t$ ps -ef | grep  30191
zeekr      30191   29743  0 19:46 pts/15   00:00:00 [sh] <defunct>
zeekr      30289   29368  0 19:49 pts/17   00:00:00 grep --color=auto 30191