Repeated MySQL “Commands out of sync” errors triggered by Optimole during shutdown hook #1014
Description
Description
A user reported that he is seeing repeated MySQL errors caused by the Optimole plugin on a WordPress site.
The error message is:
Commands out of sync; you can’t run this command now
These errors occur on every page load and are triggered during the WordPress shutdown hook.
Because this happens on every request, the site is generating hundreds of identical MySQL errors, which is filling up the error logs.
This does not appear to be related to traffic spikes or custom code. The issue seems to originate from Optimole’s attachment caching logic running during shutdown.
Can someone please investigate this ?
Reported here - https://secure.helpscout.net/conversation/3184145555/480416