RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overn ight
In my opnion, is better instead of increasing memory of tomcat JVM try to profile your application. I´m sure if tomcat complain about memory, your servlets have something wrong. -- De: Francois JEANMOUGIN[SMTP:[EMAIL PROTECTED] Responder:Tomcat Users List Enviada: quinta-feira, 8 de janeiro de 2004 7:31 Para: Tomcat Users List Assunto: RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight -Original Message- The other day Tomcat threw an OutOfMemoryException. This is our development version of Tomcat. Looking at the Windows processes revealed Tomcat at 158MB. Let me do some divination. You are using a SUN Jvm, with no Xms nor Xmx parameter. So, the memory allocated to your applications is 64MB (default). 158 is a good value reflecting the size of the VM plus the size allocated to your applications. If your application needs more memory, try to path -Xmx=128m -Xms=128m to your startup scripts. Hope this helps, François (Oraculum). - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overn ight
JProfiler is the best for this job, there are examples to show you how bind JProfiler to tomcat ( www.jprofiler.com ), its pretty easy to handle this tool. -- De: Allistair Crossley[SMTP:[EMAIL PROTECTED] Responder:Tomcat Users List Enviada: quinta-feira, 8 de janeiro de 2004 8:58 Para: Tomcat Users List Assunto: RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight Yes I would like to profile my applicationbut do you have any tips on how to do this or where to start? Thanks -Original Message- From: Edson Alves Pereira [mailto:[EMAIL PROTECTED] Sent: 08 January 2004 12:49 To: 'Tomcat Users List' Subject: RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight In my opnion, is better instead of increasing memory of tomcat JVM try to profile your application. I´m sure if tomcat complain about memory, your servlets have something wrong. -- De: Francois JEANMOUGIN[SMTP:[EMAIL PROTECTED] Responder: Tomcat Users List Enviada:quinta-feira, 8 de janeiro de 2004 7:31 Para: Tomcat Users List Assunto:RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight -Original Message- The other day Tomcat threw an OutOfMemoryException. This is our development version of Tomcat. Looking at the Windows processes revealed Tomcat at 158MB. Let me do some divination. You are using a SUN Jvm, with no Xms nor Xmx parameter. So, the memory allocated to your applications is 64MB (default). 158 is a good value reflecting the size of the VM plus the size allocated to your applications. If your application needs more memory, try to path -Xmx=128m -Xms=128m to your startup scripts. Hope this helps, François (Oraculum). - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] FONT SIZE=1 FACE=VERDANA,ARIAL COLOR=BLUE --- QAS Ltd. Developers of QuickAddress Software a href=http://www.qas.com;www.qas.com/a Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- /FONT - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overn ight
On Unix you can also use the truss command to attach to a running process (check Google for examples). I used this technique on a web application and discovered that a file with *static* content was being opened 1,000 times per hour by the application. Before I showed up at the company, everybody was working on NT and basically hated Unix, so the problem went undiscovered for close to four years. AFAIK, most (all?) of the Java-based tools would not detect this sort of problem. I don't think truss is available on NT, even with the MKS (or equivalent) package. For people who are on NT and are experiencing problems with their Java-based web- application, I would strongly recommend setting up a Unix environment to perform truss-based testing (even if you need to hire a contractor to set up everything). It's really quite amazing what truss can uncover:) Cordially, Oswald Edson Alves Pereira [EMAIL PROTECTED] wrote: JProfiler is the best for this job, there are examples to show you how bind JProfiler to tomcat ( www.jprofiler.com ), its pretty easy to handle this tool. -- De: Allistair Crossley[SMTP:[EMAIL PROTECTED] Responder: Tomcat Users List Enviada: quinta-feira, 8 de janeiro de 2004 8:58 Para: Tomcat Users List Assunto: RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight Yes I would like to profile my applicationbut do you have any tips on how to do this or where to start? Thanks -Original Message- From: Edson Alves Pereira [mailto:[EMAIL PROTECTED] Sent: 08 January 2004 12:49 To: 'Tomcat Users List' Subject: RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight In my opnion, is better instead of increasing memory of tomcat JVM try to profile your application. I´m sure if tomcat complain about memory, your servlets have something wrong. -- De: Francois JEANMOUGIN[SMTP:[EMAIL PROTECTED] Responder: Tomcat Users List Enviada: quinta-feira, 8 de janeiro de 2004 7:31 Para: Tomcat Users List Assunto: RE: Tomcat OutOfMemory at 158MB - Not reclaiming any memory overnight -Original Message- The other day Tomcat threw an OutOfMemoryException. This is our development version of Tomcat. Looking at the Windows processes revealed Tomcat at 158MB. Let me do some divination. You are using a SUN Jvm, with no Xms nor Xmx parameter. So, the memory allocated to your applications is 64MB (default). 158 is a good value reflecting the size of the VM plus the size allocated to your applications. If your application needs more memory, try to path -Xmx=128m -Xms=128m to your startup scripts. Hope this helps, François (Oraculum). - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- QAS Ltd. Developers of QuickAddress Software www.qas.com Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - Do you Yahoo!? Yahoo! Hotjobs: Enter the Signing Bonus Sweepstakes
