systemd file out of date

[Crunsher]

Formerly Icinga/icinga2#6082

Information from the original topic below. Thanks to @tmatthaeus for reporting this issue.
After a reload of icinga2 there is no icinga2 process via /etc/init.d/icinga2 reload there is no icinga2 process anymore.

OS: Debian 9.3
Icinga Version:

icinga2                                   2.8.1+406.g407a2d052.2018.02.07+1.stretch-0 amd64
icinga2-bin                               2.8.1+406.g407a2d052.2018.02.07+1.stretch-0 amd64
icinga2-common                            2.8.1+406.g407a2d052.2018.02.07+1.stretch-0 all
icinga2-doc                               2.8.1+406.g407a2d052.2018.02.07+1.stretch-0 all
icinga2-ido-mysql                         2.8.1+406.g407a2d052.2018.02.07+1.stretch-0 amd64
libicinga2                                2.8.1+406.g407a2d052.2018.02.07+1.stretch-0 amd64

Debug Logfile output:

[2018-02-07 09:11:06 +0100] information/Application: Got reload command: Starting new instance.
[2018-02-07 09:11:06 +0100] notice/Process: Running command '/usr/lib/x86_64-linux-gnu/icinga2/sbin/icinga2' '--no-stack-rlimit' 'daemon' '-e' '/var/log/icinga2/error.log' '--reload-internal' '27264': PID 27446
[2018-02-07 09:11:07 +0100] debug/IdoMysqlConnection: Query: COMMIT
[2018-02-07 09:11:07 +0100] debug/IdoMysqlConnection: Query: BEGIN
[2018-02-07 09:11:07 +0100] information/Application: Reload requested, letting new process take over.

After that no output anymore and no icinga2 process is running anymore.

[lazyfrosch]

Problem here is that the systemd file is out of date. But we also have an issue with the PID file. (discussed in Icinga/icinga2#6082)

The sysV init should be fine, it is Debian specific...

[lazyfrosch]

NOT a blocker for 2.8.2, only 2.9

[Crunsher]

As 2.9.0 was released without the service file being updated, we are facing a problem.
Icinga/icinga2#6484

[lazyfrosch]

This should be fixed in current snapshots and then included in 2.10