----- Original Message ----- From: "Diego Castillo" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, July 04, 2003 3:05 PM Subject: Forking high loaded servlet
> Hi all, > > I have a servlet that receives a heavy load. I would like to process > multiple requests in parallel in order to increase throughput. > > Tomcat creates one single instance of the servlet. This is right > according to servlet specification paragraph 3.2, but it does not suit > my needs. > > I have tried extending SingleThreadModel and Tomcat does create multiple > instances, but I get the exact same throughput. Tomcat automatically creates one thread per request. If your servlet does not have synchronization issues, it will be the same creating an object per thread that using the same object (in fact a little heavier in the first case, because of the overhead of creating objects). > > I have also tried launching a new thread for handling HttpServletRequest > & HttpServletResponse, but as soon as the servlet exits service(), the > response output stream gets closed by Tomcat. > Same here.. you are launching a Thread inside of an already independent Thread. > Is there any spec compliant strategy to increase the number of requests > per second that a servlet can handle? > In configuration you can set the processors number, but I think it is not the issue. If the problem is that you got a bottleneck in your host (CPU or disk at nearly 100%) you should consider load balancing between multiple servers in different machines or using common programming performance tricks (but I think you have already done that). Regards. > Thanks in advance, > > > Diego > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
