Sorry to bump a nearly three-week old post, but I recently started having some disk shortage issues as well. I made a comment on it on a reddit topic that seemed similar to the problem I was having and uploaded three diag logs to tricorder:
The db is filling up my SD cards, causing any DNS resolution to fail until I make space. jfb's post here helps provide some immediate relief Since this began, I've been running
df -h regularly to see how my disk space is increasing. It takes anywhere from 6-12 hours to fill up my disk space now and this is a new behavior that never occurred in the past. Not sure what else I can do other than create a cron job to delete
FTL.log every few hours.
EDIT2: Definitely looks like
/var/log/pihole/FTL.log is growing at an exponential rate. Been about two and a half hours since I last flushed it and it's already over 5GB in size. Tried to generate new Tricoders, but it hung at
*** [ DIAGNOSING ]: Dashboard and block page. Running
pihole restartdns fixed that. New Tricorders: