From what I see in NewRelic, it started happening around 4 a.m. on Sept 2. I run three large sites that were all running 8.x and wouldn’t have had any active changes at that time of night. I don’t use the speed booster plugin.

All three sites are now upgraded to 9.0.1. Two are recording a reasonable amount of data in wp_options — td_011_log, but one has already started to balloon larger than is reasonable, especially with preload on: https://www.tidesports.com/td_011_log.jpeg

I can email the contents of the log if that would be helpful.

• This reply was modified 7 years by bjornmorton.

I cleared the data, but on two of my three production sites it started growing massive again. For now I’ve toggled autoload to ‘no’ with no obvious problems.

Same thing here — autoloaded option_name td_011_log went to more than 7 MB and had to clear.