Re: Shepherd does not recycle zombie processes

[Ludovic Courtès]

Hi,

Carlo Zancanaro <address@hidden> skribis:

> Yeah, I saw that note in the documentation. I used to have
>
>    (action 'shepherd 'daemonize)
>
> as the first line in ~/.config/shepherd/init.scm. Is there some other
> way that I was supposed to do that?

No, I think that should work.

> With that line in place, Shepherd will leave behind a process every
> time I stop/start a service.
>
> I have attached an example init.scm that does this for me. If I start: 
>
>    shepherd -c init.scm
>
> and then run:
>
>    herd stop sleep
>    herd start sleep
>    herd stop sleep
>    herd start sleep
>    herd stop sleep
>
> then I will have three zombie sleep processes underneath my Shepherd
> process. (If the service were respawnable then it also would fail to
> restart the service.)

Could you run shepherd in “strace -f” and see where the SIGCHLD signals
go?

Thanks,
Ludo’.