I have a couple of services using "ExecStart=/usr/bin/java -jar" and I want them to start as late as possible (after network, firewall and login service).

I have tried to list different dependencies in [Unit] both "After" and "Requires", but it doesn't seems to do anything. If I look at the boot log my services starts before all dependencies.

I've tried (for example),

Description=My Service 01
After=systemd-user-sessions.service network.target

I can see that crond starts last in the boot sequence, so I've tried.

Description=My Service 02

No difference... My services starts long before crond.

Any suggestions? Am I doing something wrong? It's the same on both Red Hat 7.2 and 7.3.

  • What does your [Install] section look like? – Patrick Apr 19 '17 at 12:42

The Arch wiki sysyemd page has a bit of insight into this:

Note that Wants= and Requires= do not imply After=, meaning that if After= is not specified, the two units will be started in parallel.

For each dependency, you probably want to add both a Requires and After for each unit that you want it to start after:

Description=My Service 02 
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  • The asker already has After in their service file. Unless their service actually requires cron (or whatever they're starting after), they should not be making it required. – Patrick Apr 19 '17 at 18:25
  • Good point, you're right that this includes a possibly unnecessary Requires, perhaps I'll have to rethink my answer. – etskinner Apr 19 '17 at 18:52

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