OK, I understand that I need different tool to restart a service
if a check-script fails.
In my case the check script will be custom code. But the restart stuff
is very general and reusable:
Step1: Call check-script
Step2: If exit 0 (meaning service is working), then wait N seconds, got to
Step1
Step3: Service is not working: Send process the signal TERM_SIGNAL (should be
configurable)
Step4: Wait N seconds until process terminated.
Step5: If process did terminate, restart the service. Wait, go to Step1
Step6: Process did not terminate: Wait N seconds, Send signal KILL
Step7: Wait until OS has cleaned up the service
Step8: Restart the service, Wait, got to Step1
I could implement these steps myself, but I am lazy. I guess this
has already been done several times before.
Any tool recommendation?
Yes, this is off-topic and fits to the current thread :-)
Regards,
Thomas Güttler
Am 26.05.2016 um 15:15 schrieb Lennart Poettering:
On Thu, 26.05.16 14:39, Thomas Güttler (guettl...@thomas-guettler.de) wrote:
Am 26.05.2016 um 14:35 schrieb Andrei Borzenkov:
On Thu, May 26, 2016 at 3:18 PM, Thomas Güttler
<guettl...@thomas-guettler.de> wrote:
I want to know if the service is alive,
Define "service is alive".
the service is alive if a custom check method has the exit status of 0
That's out of the scope for systemd really. That's monitoring, and I
am not convinced having custom check function support in systemd is
really appropriate, this should be implemented outside of systemd
really.
Lennart
--
Thomas Guettler http://www.thomas-guettler.de/
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