I've done a lot of experimentation with (now deleted) rules and apps that the log heading is so long I have to scroll down 2 pages to view the recent past logs. I really don't care about logs that are more than a day or two old.
Is there a way to clear out old logs or make them go away faster?
I had excluded and included 17 devices to add S2 security. The result was a bunch of generic driver names at the bottom of past logs that made no sense unless you clicked on them. Plus, all the old ones up top that I no longer needed. They were hanging around without change at least a week.
Anyway, I did a local backup, hit soft reset which has a check box on it to get rid of all past logs, restored, and voila...no more past logs. I've done it twice already, lol.
It's safe. Download your current config. (settings>>backup and restore>>click download button at the bottom of page. )
Go to yourhubip:8081 and do the softreset. On reboot it will prompt you to restore. Pick the backup you downloaded to your PC. The added benefit is this will clear any possible corruption you might have in your database. Your radios will not be touched.