Howdy, I see three options that fall within the realm of not a huge amount of work:
- Dig into tomcat source code, extend Coyote in some custom way to recognize your headers, recognize what you call "load" (which is much harder to do than recognizing headers), and filter requests appropriately. - Create a simple Filter (ServletFilter) that looks for your request headers, again recognizes "load", and filters requests appropriately (this filter would be mapped to url-pattern /*). This is far less efficient than the Coyote solution, because you will reject requests further along the processing pipeline that you need to, but this approach is portable. - Attack the problem with clustering: install more tomcat instances and a load balancer, ideally one that can assign weights to your workers and direct requests to workers according to headers. (The balancer webapp that ships with tomcat 5 has a request header rule that will let you redirect requests based upon header values -- you'd have to add the "load" recognition capability). Yoav Shapira Millennium ChemInformatics -----Original Message----- From: Donie Kelly [mailto:[EMAIL PROTECTED] Sent: Friday, January 09, 2004 7:20 AM To: Tomcat Users List (E-mail) Subject: How does a servlet request work. Not a newbie question ;) Hi all I want to insert some form of scheduling into our application and I was wondering how Tomcat passes the request to the actual servlet I write. Does Tomcat just read the headers to create the request object and leave the body of the message in an inputstream for the servlet to read or is all the data in the request read by Tomcat before passing it to servlet? Some of my traffic is more important that other based on headers in the request. I want to prioritise the handling of requests under load conditions. Any input on this is welcome. Thanks Donie This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
