On Thu, Jul 14, 2016 at 3:34 PM, Holger Kiehl <holger.ki...@dwd.de> wrote:
> Hello, > > I am new to systemd and the maintainer of the file distribution software > AFD (http://www.dwd.de/AFD) and I am trying to adapt this application > to systemd. The problem I am unable to solve is that doing a reboot, > poweroff or halt, all process get a SIGTERM before systemd calls the > command supplied by ExecStop. If I do a 'systemctl stop afd.service' > everything works as expected. I have searched the web for a solution > and have tried all the different service Type=, unit After=/Before= > combination, but failed so far. I must be doing something obviously > wrong, but unable to see what and need help please. > > The service/unit file looks as follows: > > [Unit] > Description=Automatic File Distributor > After=basic.target > > [Service] > RemainAfterExit=yes > Type=oneshot > ExecStart=-/etc/init.d/afd start > ExecStop=-/etc/init.d/afd stop > KillMode=none > StandardOutput=syslog+console > StandardError=syslog+console > > [Install] > WantedBy=multi-user.target > > /etc/init.d/afd is a shell script that starts one or more instances of > the AFD under different users. The users are configured in > /etc/sysconfig/afd > and are started via the following command: su - $afduser -c "<cmd > start/sop AFD>" > To speed things up a bit the script forks for each user to start/stop the > AFD instances. The script /etc/init.d/afd is just initiating thinks, but > always waits for the command to complete. AFD itself has an init process > (init_afd) that then starts several other process and monitors them. > It's possible that `su` moves its children to a different cgroup, making them no longer technically part of the service, but rather part of a user session. Check whether `systemctl status afd` actually shows your sub-daemons while they're running... (Other useful tools are `systemd-cgls` or `ps axfo pid,user,unit,cmd`.) If that's the problem, try using `runuser -u $afduser …` instead. Better yet, forget init.d and create a native afd@.service, with one instance per user (afd@user1, afd@user2, etc.), each instance running *exactly one* daemon. -- Mantas Mikulėnas <graw...@gmail.com>
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