Problem: Systemd does not log to /var/log/journal

Problem

The size of /var/log/journal does not change and systemd does not log to this directory any more. Instead it writes logging information to /run/log.

Solution

To restart logging for/var/log/journal do the following:

cd /var/log 
mv journal journal.alt 
mkdir journal 
systemd-tmpfiles --create --prefix /var/log/journal 
systemctl restart systemd-journald