Howdy, >If I understand this correctly, there are references lying around that >point to objects that no longer are needed. Is this something the >developer does or something tomcat does in compiling the servlets?
This is something the developer does. >In other words, is there something the developer or administrator can do >to avoid this? Does pre-compiling the jsp files avoid this? Pre-compiling JSP files helps avoid the javac memory leak previously described. The memory leak is just inside the JSPC process, not inside the tomcat running server. The developer can employ good coding practices as well as good QA practices such as the use of a profiler throughout the lifecycle of the project to detect and prevent memory leaks. >If you don't change the JSP pages, or class files, then the memory leak >that is created just happens once. In this scenario, the memory >leak wouldn't keep growing until eventually tomcat does. Is that correct? This is true. In this scenario (one compilation of each JSP in a running tomcat server) you'd have a limited memory leak per JSP. If you have thousands of JSPs, this can still be a serious leak. Yoav Shapira > >Thanks, >Oscar >http://daydream.stanford.edu/tomcat/install_web_services.html > >On Wed, 17 Dec 2003, Shapira, Yoav wrote: > >> >> Howdy, >> Actually, the popularity and usage of Jikes has been decreasing (at >> least as measured by downloads). Javac's memory-handling behavior has >> been improved significantly. >> >> The memory leaks described earlier in this thread are not >> compiler-related and simply swapping compilers would not help. They are >> problems of reference scope. >> >> Yoav Shapira >> Millennium ChemInformatics >> >> >> >-----Original Message----- >> >From: Nikola Milutinovic [mailto:[EMAIL PROTECTED] >> >Sent: Monday, December 15, 2003 1:16 AM >> >To: Tomcat Users List >> >Subject: Re: Need some Tomcat Configuration help badly >> > >> >Dick Steflik wrote: >> > >> >> I had the same question. In all of the years I've worked with Java >> I've >> >> always thought it was free of memory leaks. If you use a different >> >> compiler does the problem go away. Is that how people like JRun >> >> (Macromedia) and WebSphere (IBM) avoid the problem? >> > >> >It could be. Someone here mentioned using Jikes for Tomcat as a >> workaround >> >(solution). I know that Jikes has bugs, here and there, but it can be >> made >> >to >> >work and it comes with Tomcat. Considering that "javac" has an all >> present >> >bug >> >(this memory leak), Jikes is better. I guess commercial solutions use >> their >> >own >> >implementations or fork off to get rid of memory leak. >> > >> >Why does JavaC have that memory leak? >> > >> >Nix. >> > >> > >> >--------------------------------------------------------------------- >> >To unsubscribe, e-mail: [EMAIL PROTECTED] >> >For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >> 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] >> > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] 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]
