Hello.
I wrote a shepherd service that runs a java application in a semi standard
fashion
(start
#~(make-forkexec-constructor ...
#:user ..
#:group ..
#:environment-variables ...
(stop
#~(make-kill-destructor)
$ sudo herd start my-service
starts without a hitch, but
$ sudo stop my-service
simply hangs for the default 5sec until Shepherd SIGKILLs it (as per
/var/log/messages) and even after that console where I run the herd stop
command doesn't get released until I manually CTRL-C it.
Been driving me nuts, cause Java handles SIGTERM but just in case I even
added shutdownHook to my app that should explicitly execute on SIGTERM and
other such signals. Testing it on OSX e.g. works just fine. But stop
wouldn't work on guix. I then decided to try everything manually:
$ start my java app from the console
In another console
$ sudo pkill -TERM pid
and nada ... it's like signal isn't even delivered.
$ sudo pkill -KILL pid
Eh ... still nothing
$ sudo kill -s SIGTERM pid
gets delivered
Ha? kill vs pkill ... ha? Could this give a clue as to why sudo herd stop
won't work?
What is going on here? Any ideas? I'm completely lost at this point.
--
Best regards
Vlad Kozin
