[arch-general] Protect a cron job from systemd

[Dimitrios Apostolou]

Hello list,

among various tasks, I also run "sysstat" for monitoring my server's load. 
The way it runs by default is via the hourly cron, as a job that lasts 
exactly one hour. Sometimes I need to stop crond (systemctl stop dcron) to 
perform some short maintainance, and restart it a minute later that I'm 
done.

Previously the "sadc" monitoring process of sysstat wasn't being killed, 
since it double forked and stayed up as a daemon. Unfortunately now 
systemd kills the whole cgroup, and in this manner it's possible to lose 
up to one hour of accounting logs. Any ideas on how to instruct systemd to 
not kill it when terminating crond?


Thanks in advance,
Dimitris