How to Restart SMP server
Caused by a conflict in the port assignment I get this entry in mesages.log and SMP doesn't respond:
08/30/20-12:56:40:714 (15232) 1 [Utility.Event] Private webserver may not start on port 52773, may be in use by another instance
08/30/20-12:56:40:737 (15232) 0 [Utility.Event] Private webserver started on 52773
08/30/20-12:56:40:737 (15232) 0 [Utility.Event] Private webserver started on 52773
The first line is true, the second is just wishful thinking 
demo code on GitHub
Product version: IRIS 2020.1
OK.
There was no quick shot from the hip out of the community to help me.
So I went to dig into the subject myself and found an acceptable solution.
The result is now available on Open Exchange and it is also LINUX / UNIX aware and not just for windows
The link doesn't work. Also note my other response, there is actually an API for that already.
this is a feature of OEX.
The link only works after the application was approved. some times in the future.
After a long day without reaction I didn't expect a fast reply
in the meanwhile the link to GitHub: https://github.com/rcemper/Restart-httpd-for-SMP
Now it's approved!
Yes, the review process in OEX takes human time and sometimes it's not immediate)
@Robert Cemper, thanks again for yet-another useful contribution to the community!
@Evgeny Shvarov
I appreciate that process with HUMAN verification.
And there was never any issue with the other 35 applications.
As a massive user, I state: II is just OK as it is ! Pls. don't change!
For next time, this might be helpfull:
https://docs.intersystems.com/irislatest/csp/documatic/%25CSP.Documatic....
In windows it just triggers the service restart (which you can also do from the service.msc terminal), in linux it restarts the daemon.
Neither of which will be helpful if apache is properly frozen, in that case you'll have to kill it manually first.