[systemd-devel] Started process not attach to its related service.

[Benoit SCHMID]

Good morning,

This topic is related to the systemd-sysv-generator thread submited by
my colleague.
I post it with another subject becaus I prefer to create another thread
as it would make too many different questions in the same thread.

1. I have defined a service.
It is started by systemd on boot:
# systemctl status sap
● sap.service - SYSV: Startup/Shutdown SAP and Oracle Listener
   Loaded: loaded (/etc/rc.d/init.d/sap; bad; vendor preset: disabled)
   Active: active (exited) since Tue 2016-11-22 09:22:23 CET; 3min 7s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 14124 ExecStart=/etc/rc.d/init.d/sap start (code=exited,
status=0/SUCCESS)

2. This service starts /etc/rc.d/init.d/sap start.
% cat /etc/rc.d/init.d/sap
#!/bin/bash
...
case "$1" in
    start)
        # Oracle listener and instance startup
        echo -n "Starting Oracle Listener: "
        su - $ORA_OWNR -c "env ORACLE_HOME=/oracle/XXX/12102
/oracle/XXX/12102/bin/lsnrctl start LISTENER_XXX"
        touch /var/lock/subsys/sap
        echo "OK"
        ;;
...

3. The desired process is correctly started:
# ps -ef | grep -i lsnr
oracle   14955     1  0 09:22 ?        00:00:00
/oracle/XXX/12102/bin/tnslsnr LISTENER_XXX -inherit

4. But this process is not attached to sap service.
It is attached to the user-xxxx
   CGroup: /
           ├─1 /usr/lib/systemd/systemd --switched-root --system
--deserialize 2
           ├─user.slice
...
           │ └─user-xxxx.slice
           │   └─session-c2.scope
           │     └─14955 /oracle/XXX/12102/bin/tnslsnr LISTENER_XXX -inherit
...

Why is the processed attached to user-xxxx.slice instead of sap?
Why has sap no attached process to it?

Thanks in advance for your answers.

-- 
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     Benoit Schmid              Tel: (+41-22) 379-7209

     University of Geneva - Information Technology Division

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