Stopping Cron Job Process

Hi Guys,
I've added a cron job at ISPConfig Cron Jobs UI and I had some error on the script that I'm running. Now I wan't to stop it without restarting the OS.
So I've execute: service cron stop
and I remove the cron job at ISPConfig UI but when I start the cron job, the process is still there. I've already tried pkill -u root cron still not working.
My only option now is to restart the OS but I can't do it currently because I have an online users so I disabled all the the cron jobs currently.
How can I stop those cron job process without restarting the OS?

Thanks,
John

 

what distro?

 

Hi sjau, I'm using debian 8

 

Debian Jessie uses SystemD now.

Check if cron is running

Code:

systemctl status cron

If so, stop it

Code:

systemctl stop cron

 

Hi sjau, Thanks for the reply.
The cron job is already stopped but the problem is when I run the cron job again I still see the process of the script that I'm running a while ago. The script consumes my memory and other resources.
How can remove those cron job that is currently running?
Stopping the whole cron job doesn't solve the issue. It seems that ISPConfig save the cron job script and restart it again once the cron job is started.

Thanks,
John

 

I have no idea what is actually run. If you stop cron, then it won't run any further cron jobs. Current jobs still will continue to run though.

 

Hi sjau,
Ok for clarification I've added a cron job script from the ISPConfig UI. That script somehow has an error and consumes my resources and I wan't to stop it from running.
I've stopped the cron job and delete the cron job script from ISPConfig and it works fine I can't see the script running.
The problem is when I start the cron job again using "systemctl start cron" my error script seems restarted and its running again.
Hopefully its much clearer now.
Thanks,
John