How to kill a process on a remote server using python paramiko

问题

I have python script that connects to a remote server with lenny operating system. It runs a process in background using following line:

shell.send("cd /my/directory/; nohup ./exec_name > /dev/null 2>&1 &\n")

Then after some other codes, it sends a kill command to the server to stop process execution; here's the code:

shell.send("kill -9 process_pid \n")

It returns no error, but doesn't kill the process and it's still alive in the system. I also tried killall -9 process_name, but I got the same result. Any help?

For more information, here's the code for connecting to the server:

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(hostname = "host_ip", username = "un"], password = "up")
channel = ssh.get_transport().open_session()
pty = channel.get_pty()
shell = ssh.invoke_shell()

I should mention that the user has root privileges.

EDIT 1:

I forgot to say that I tried this:

ssh.exec_command("kill -9 process_pid \n")

But it returned this error:

SSHClient is not active right now.

Edit 2:

As @JimB mentioned in the comment, the problem about exec_command is that the transport has been staled. I made a temporary SSH connection and killed the process by that; it was successful. But I'm still searching for a better way.

来源：https://stackoverflow.com/questions/21530126/how-to-kill-a-process-on-a-remote-server-using-python-paramiko