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Re: systemd can't start a dæmon and doesn't give any error either

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On Mon, Oct 08, 2018 at 06:17:52PM +0800, Weiwu Zhang wrote:
> To show this dæmon itself is properly configured and runs fine on Debian 9.5:
> 
> # su bitcoin
> $ cd
> $ /usr/local/bin/bitcoind -daemon
> Bitcoin server starting
> $ pgrep bitcoind
> 3946

You've used an option named "-daemon".  I am guessing that this causes
the process to "daemonize" itself (auto-background, self-background).

This is what you want if you're on a BSD system in 1989.

This is NOT what you want if you're on a systemd system in 2018.

If you omit the -daemon option, does the process run in the foreground?
If so, THAT is what you want.

> However, it won't start if converted to a systemd service:
> 
> # cat /etc/systemd/system/bitcoin.service
> [Unit]
> Description=bitcoind
> After=syslog.target
> 
> [Service]
> User=bitcoin
> ExecStart=/usr/local/bin/bitcoind -daemon
> 
> [Install]
> WantedBy=multi-user.target

You did not specify what TYPE of service this is.  Since you didn't specify
a Type= option, systemd uses the default, which is "simple", which means
that it expects a single process to run in the foreground.

So: either omit that "-daemon" option, or whatever it takes to make the
process run in the foreground like a good process should.

-OR-

Tell systemd that your process uses ancient, broken behavior
(self-backgrounding) by specifying "Type=forking".

I know which one I would pick.  Assuming that dropping -daemon does what
I am guessing it does.  (If my guess is wrong, then you may be forced
to use a non-simple Type= option.)

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Thread

systemd can't start a dæmon and doesn't give any error either Weiwu Zhang <a@colourful.land> - 2018-10-08 12:40 +0200
  Re: systemd can't start a dæmon  and doesn't give any error either Dan Ritter <dsr@randomstring.org> - 2018-10-08 15:10 +0200
    Re: systemd can't start a dæmon and doesn't give any error either Weiwu Zhang <a@colourful.land> - 2018-10-08 15:20 +0200
  Re: systemd can't start a dæmon  and doesn't give any error either Greg Wooledge <wooledg@eeg.ccf.org> - 2018-10-08 15:20 +0200
    Re: systemd can't start a  dæmon and doesn't give any error either "AvY" <avy@avyenterprises.com> - 2018-10-08 16:40 +0200
      Re: systemd can't start a dæmon and doesn't give any error either Weiwu Zhang <a@colourful.land> - 2018-10-08 23:10 +0200
    [OT] Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Didar Hossain <didar.hossain@gmail.com> - 2018-10-09 09:10 +0200
      Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and  doesn't give any error either) <tomas@tuxteam.de> - 2018-10-09 11:30 +0200
        Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Jonathan Dowland <jmtd@debian.org> - 2018-10-09 12:00 +0200
          Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and  doesn't give any error either) <tomas@tuxteam.de> - 2018-10-09 12:30 +0200
        Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Greg Wooledge <wooledg@eeg.ccf.org> - 2018-10-09 15:10 +0200
          Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and  doesn't give any error either) <tomas@tuxteam.de> - 2018-10-09 18:20 +0200
            Re: Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2018-11-17 22:00 +0100
              Re: Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Roberto C. Sánchez <roberto@debian.org> - 2018-11-17 22:30 +0100
      Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Jonathan Dowland <jmtd@debian.org> - 2018-10-09 11:50 +0200
        Re: [OT] Systemd and forking programs (was systemd can't start a dæmon and doesn't give any error either) Greg Wooledge <wooledg@eeg.ccf.org> - 2018-10-09 15:10 +0200

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