Even though there are no quotas specified for any of my databases the ISP Config cron job checks the size of all databases every 5 minutes. Why is this? Have I missed something? The reason I looking at this is because I'm getting load spikes on the hour every hour. Most of the time the spikes are 2-3 but occasionally they go up to 35-70!
I see that quite a few of my databases have a -1 quota when newly created. Why is this? The size percentage used is also reported as a minus figure!
Database sizes are calculated for the statistics, not only when quota is set. -1 = unlimited, which means no quota is set.
Then the quota check is not related to your problem, otherwise you would get a load spike every 5 minutes and not once an hour.