You probably have a resource leak in your application. You might want to run FindBugs on it:
http://findbugs.sourceforge.net/ George Sexton MH Software, Inc. http://www.mhsoftware.com/ Voice: 303 438 9585 > -----Original Message----- > From: Asim Alp [mailto:[EMAIL PROTECTED] > Sent: Monday, December 13, 2004 11:32 AM > To: Tomcat Users List > Subject: Re: OutOfMemory Errors > > Hello Peter, > > Sorry. My system config is: > > Windows Server 2003 > Apache 2.0.49 (Win32) mod_ssl/2.0.51 OpenSSL/0.9.7d DAV/2 mod_jk/1.2.6 > Tomcat 5.5.4 > sun jdk 1.5.0-b64 > > We have a 2 node tomcat cluster each running with the -Xms128m > -Xmx1024m options. > > We have a heavily loaded JDBC application running and our MySQL server > has enough max_connections to handle our load. For now, we have > Apache, one of the Tomcats and MySQL running on the same machine (2 x > 3.8 Ghz Intel with 2GB of Ram). We're also using this server as a > file server with RAID 5. > > >From Task Managers performance monitor, I'm looking at the Handles (I > hope I'm looking at the correct thing). Total number of handles is > around 30400 (almost two times 16K). Apache is usually using about > 3000, Tomcat 5000, MySQL 9000, System 2600, svchost 1000. > > Do these values look normal? > > Asim > > On Mon, 13 Dec 2004 17:53:35 -0000, Peter Crowther > <[EMAIL PROTECTED]> wrote: > > > From: Asim Alp [mailto:[EMAIL PROTECTED] > > > I'm trying to solve an OOME on our Tomcat. > > > > Tomcat version? > > JVM version and settings? > > Application characteristics? > > Other libraries in use (eg JDBC)? > > > > > We profiled our > > > application using JProfiler and there are no memory > leakages on our > > > end. Currently, I'm focusing on some system resource > problems such as > > > file descriptors. Would this be a valid problem on Windows Server > > > 2003? And if so, how can I change the max number of file > descriptors? > > > > I suspect someone else will give a better Java solution, but I'm a > > Windows hack who's a relative latecomer to Java... > > > > You've got 16k to go at by default. How many are you > using, according > > to Performance Monitor? And how many in the JVM running Tomcat? > > > > > One last thing... What other resources should I > investigate for this > > > sort of OOME? > > > > http://www.sysinternals.com/ for 'handle' and Process > Explorer if you > > suspect a resource problem on Windows. > > > > - Peter > > > > > --------------------------------------------------------------------- > > 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] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
