[undertow-dev] Worker thread queue size and timeout behavior

I'm looking for a bit of understanding on just how Undertow handles large numbers of requests coming into a server. Specifically when more requests are being sent in than are being completed. I've been doing some load testing on a CFML app (Lucee Server) where I happen to have my io-threads set to 4 and my worker-threads set to 150. I'm using a monitoring tool (FusionReactor) that shows me the number of currently executing threads at my app and under heavy load I see exact 150 running HTTP threads in my app server, which makes sense since I have 150 worker threads. I'm assuming here that I can't simultaneously process more requests than I have worker threads (please correct if I'm off there) So assuming I'm thinking that through correctly, what happens to additional requests that are coming into the server at that point? I assume they are being queued somewhere, but - What is this queue? - How do I monitor it? - How big can it get? - Where do I change the size? - How long do things stay in there before sending back an error to the HTTP client? - Can I control what error comes back to the HTTP client in that scenario? - If I'm using an HTTP/S and AJP listener, do they all share the same settings? Do they share the same queues? I've done a bit of Googling and reviewed some docs but haven't quite found any definitive information on this, and a lot of info I found was about Wildfly specifically so I wasn't sure how much of it applied. Thanks! ~Brad *Developer Advocate* *Ortus Solutions, Corp * E-mail: brad(a)coldbox.org ColdBox Platform: http://www.coldbox.org Blog: http://www.codersrevolution.com