I am not sure what is the cause of the problem. Bare with me and i will try to explain the better i can.
We have an owner with many content rules (100) load balance over six services . What we are seeing is some the of content rule is forward to the wrong services. The Apache servers were the http request is send is reporting 404 which is what you expected because the content is not there.
This is a intermittent problem. Any of you experience this behavior
You could monitor with 3 or 4 commands to check what services are receiving the connections on a short period of time but given the fact that you have 100+ rules with some of them sharing the services, it would be tremendously difficult to gather accurate data; specially if this CSS is on a production environment where you can't suspend services or rules in order to see different results from differents kinds of tests.
I'd say the best way to approach this problem is to ask a few of users/clients at what point of the connection they're seeing the 404 response, for example:
A) Client A connects fine - does some requests page looks as expected, in a short period of time (say 4-5 HTTP GETs), he ends up in a different server with a 404, same for client B,C, etc.
B) Client A connects fine, retrieves information flawlessly from the site, he walks away from his chair leaving the session opened, comes back an hour later, tries to get some info but he gets 404.
Llama will not help much, it won't show detailed information about the conns being held by each service or something.
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