We are aware of sporadic issues resulting in 504 errors across our infrastructure. This is not unique to any one collection or cluster. We are working on the weekend trying to pull together information that will allow us to work with our partners in other University groups to resolve this as soon as possible.
We have identified infrastructure that requires a change, and that we hope will resolve our network instability issues. It is shared infrastructure impacting more than just ibiblio, so a coordinated change window is required. We will update here when we have more information.
Shared infrastructure changes are done. If you are seeing sporadic 504 errors when accessing web or vhost clustered collections, please do reply here with the URL and time of access. More follow-up testing is required on our end, but we hope we are now better equipped to diagnose and repair any remaining issues.