Ok…So now everything is working fine. I did nothing. I find that like most hosts, performance can differ from hour to hour. The admin is now super speedy and saving field groups is taking about 3 seconds vs over 30 before.
Sorry…nothing to see here. Move along.
For those that don’t use Rackspace Cloud sites…here is more detail on the timeouts and why they happen:
http://www.rackspace.com/knowledge_center/article/connection-timed-out-error-message-1
“The bottom line is that data must be sent back to the client’s browser to keep the connection alive. So regardless of what sort of processing a page is doing, it must return data frequently or the load balancer will assume the connection has been dropped and will forcefully terminate it. Put simply, there will be some limitations of the shared architecture of Cloud Sites that will not allow us to resolve all issues for all customers.”
I am having the same issue with a field group of 27 fields. That doesn’t seem like a lot to me. The changes actually go through, but I get a timeout everytime I save or update my fields. It also timed out when I duplicated that field group.