Yes, I have been to those places too, and many others as well. The key components of my transhandler come straight out of "http://perl.apache.org/docs/2.0/user/handlers/http.html#PerlTransHandler", yet the fact remains that when I enable the mod_perl transhandler, the Apache server, after functioning normally for a while, soon becomes unresponsive. The report that it is out of threads is the only clue I have at present. If my transhandler itself adheres to the available documentation but the system is consuming threads, it seemed logical to presume that some additional step might be required to induce mod_perl/Apache to process a request fully to completion (i.e. release the responsible thread).