Ralph, you mention using jikes as a possible alternative... Will jikes work with JDK 1.4? Are there any other benefits to using jikes besides the memory leak issue?
-August --- Dave Hladky <[EMAIL PROTECTED]> wrote: > Rick Fincher wrote: > > >The javac in J2SE 1.4 has the memory leak 1.1.1 works OK under > Solaris. > > > >----- Original Message ----- > >From: "Ralph Einfeldt" <[EMAIL PROTECTED]> > > > >>- First make shure that you don't have memory leaks on your own. > >>- Make shure that you store as few data in sessions as possible. > >> Remember that the sessions stay around for 30 minutes after the > >> last action in the action. (30 minutes is the default for the > >> session timeout). This way the number of concurrent sessions > >> can be much higher than the number of active sessions. If you > >> get 1 user per minute and each stays for one minute you will have > >> 30 concurrent session, but only 1 active session. > >> > >>- The only memory leak that I know in this environment is the java > >> compiler of the JDK. It has been reported that in some versions > >> of the JDK javac has a memory leak. So each time tomcat compiles > >> a page you will lose some memory. > >> There are two solutions to this problem: > >> - Use only precompiled JSP's (jspc) > >> - Use another compiler (jikes) (Don't know if it's available > >> for solaris) > >> > >>- I have read that some VM versions have trouble to invoke the gc > >> if there isn't any available memory. It was suggested to issue > >> a System.gc() if your free memory is below a watermark. > >> I didn't investigate this further. > >> > >>- Use OptimizeIT to find out where the leaks are. > >> > >>>-----Ursprüngliche Nachricht----- > >>>Von: David Hladky [mailto:[EMAIL PROTECTED]] > >>> > >><snip/> > >> > >>>Could someone with experience tuning Solaris JVMs > >>>give me and my friends a hint or two on how to force the JVM to > >>> > >>garbage > >> > >>>collect/tune. Or is this just a memory leak in Tomcat and or > JBOSS? > >>> > >><snip/> > >> > >> > >Thanks for the hints, We've torn our code apart with OptimizeIt and > found out that it really isn't the problem. I think you are on to > something about the jsp precompiled thing though. Thanks again. > I'll try a few of the other things you've mentioned. > > > >-- > >To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > >For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > > > > __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
