15.1 PID File Unavailable Message

After the service start is complete, systemd verifies for the presence of PID file. If the PID file is not found, the following message can be seen in /var/log/messages and also through systemctl status command.

<service>.service: PID file <file path>.pid not readable (yet?) after start: No such file or Directory

Such messages can be ignored, because the service would still be coming up in the background and creating its PID file later.