From our IT Support team:
I've gone ahead and had a dig into the site and managed to get things stable again, however, we did end up having to disable the toolset-blocks plugin as it was the cause of the issues.
With the plugin activated we were seeing a huge CPU spike on the site pods and also it was spawning many rogue database processes that were not actually doing anything productive. I tested by clearing them manually but found while the plugin was active they instantly respawned again overwhelming the resources.
Now typically we only see this if there is a huge external type attack going on, but in this case, the site gets very little traffic and here the issue is being caused internally.
From our logging we can see that the plugin was also outputting a lot of slow errors (this is where it takes seconds rather than fractions of a section for it to perform a action) and it was in relation to some sort of image_downsize() function that it was attempting to do.
As things stand now we have the plugin deactivated in order to keep the site online, but as a next step we would recommend checking if anyone had been working on any posts or pages in the site, embedding any sort of content or have recently uploaded any large media to try and track down where the issue occurred from and see if that can be double checked.
With the plugin re-activated I do suspect it may crash the site once again until the cause/change is tracked down.
Hello,
There should be some PHP errors in your website, please try to get the PHP debug logs:
https://toolset.com/documentation/programmer-reference/debugging-sites-built-with-toolset/#php-debugging
section "PHP Debugging"
You can also reproduce the same problem in below test site:
hidden link
I need a live website to test and debug.
