I'm running Ubuntu 17.10 on an HP laptop. It is running normally and stable however recently I am having problems where systemd-journald starts using 100% of one CPU causing it to overheat and shut down.
I've linked the problem to a java application (Pentaho application) which when opened triggers something in systemd-journald to go crazy. I've been using this application for years without problem (and without updates) so this looks to be more of an issue with systemd. Closing the application does not stop systemd so it continues to overheat and shutdown. Another Pentaho application does not cause the same issue.
Research shows plenty of issues with high CPU from journald, but I cannot find a solution to my issue.
Is it possible to exclude an application from systemd logging? Or some other configuration or setting I could change to stop logging?