I chuckle knowing that somewhere in Apple there is an SRE or engineer who is getting paged for elevated 404 rates, and has to silence the pages hoping that no real missing page issue crops up while we all hit this page. :)
I chuckle knowing that somewhere in Apple there is an SRE or engineer who is getting paged for elevated 404 rates, and has to silence the pages hoping that no real missing page issue crops up while we all hit this page. :)
They can sleep undisturbed likely, as 4xx (client) errors are typically not paging.
Monitoring for 4xx can be indicative of a bad deployment, like a form not sending the right information anymore or dead links. Can be quite handy to get paged for client errors to proactively fix these issues.
I'm glad I'm not the only one :-)