Thanks for the feedback and for looking into it / opening a ticket! I have no experience in Perl at all, I'm afraid. This is why I wasn't able to dig deeper into your code.
Indeed, my use-case is dependent on the termination sequence. Yet, I can honor a fixed termination signal for the toolchain to use. Can you remind me / document what the default termination signal for remote jobs is? What signal does the remote wrapper send to remotely spawned processes if not default? Regarding behavior documentation: When cancelling GNU Parallel running remote jobs, it returns immediately. Indicated on https://www.gnu.org/software/parallel/parallel_design.html#The-remote-system-wrapper, there is the "Remote Wrapper" which acts as a fallback mechanism to terminate remote jobs. Yet, there is no feedback channel for GNU Parallel to know when the remote processes actually stopped thus it returns immediately upon CTRL-C. This leaves the impression as if nothing happened although I know that terminating my remote jobs takes about 20 - 30 seconds while on local instances GNU Parallel blocks until the jobs are terminated properly. As I came across the "parallel_design" page fairly late, maybe linking it here https://www.gnu.org/software/parallel/man.html#EXAMPLE:-Using-remote-computers would have saved some time on experimenting. All the best Jens INTERNAL -----Ursprüngliche Nachricht----- Von: Ole Tange <o...@tange.dk> Gesendet: Sonntag, 20. September 2020 00:45 An: Nachtigall, Jens (I/EK-Z6) <jens.nachtig...@audi.de> Cc: parallel@gnu.org Betreff: Re: Graceful Process / Script Termination On Thu, Sep 17, 2020 at 6:07 PM Nachtigall, Jens (I/EK-Z6) <jens.nachtig...@audi.de> wrote: > The only very misleading thing is, that GNU Parallel terminates and returns > immediately, regardless. Please help write what should have been written in the documentation, so you would have known this, because absolutely nothing is obvious around the remote wrapper. Re-reading the wrapper I can see, that --termseq is not supported at all for remote jobs, so I have created https://savannah.gnu.org/bugs/index.php?59146 /Ole
