I'm working on reddit.com, which uses TBNL as its web framework. For the most part, all is well, but I've been running into an error lately that is causing me to worry. Basically, the symptom of the problem is that our website appears to pause, and all requests just hang (eventually they'll timeout on the browser side).
I am not sure whether it is related yet - I was having simmilar problems with tbnl/cmucl while making mod_lisp interoperate with mod_xslt. While server was getting enough traffic it was pretty responsive yet after long pauses I was getting timeouts. Though tbnl on sbcl was working fine with such configuration. The workaround i have found was - send a ping request once in a few seconds not letting cmucl "sleep". As if one of cmucl threads was hogging all the resources and not giving any to threads that were not doing anything for a while ... Ignas
P.S. it could have been related with mod_lisp + mod_xslt combination though ...