Hi, Robert First thanks for take the time to answer me.
I want yo explan you that the jvm is in 32 bit mode only de SO is in 64 bits and before that, in 32 bits mode, i have the same problem. I test my app a lot, i reach 16/25 treads, but not the same number that reach in production. The app starts to fail historically when the users start to grow. thanks a lot for your time. Miguel. >Hi Miguel, > > > >The first thing to confirm is whether the JVM is running in 64-bit mode. >JRun 4.0 has not been tested against 64-bit JDKs, so very well could be >problems in that type of environment. So it's an important fact that >this also fails in a 32-bit environment. > > > >Historically, has the app always worked and just recently started to >fail, or is this a new app and has the memory consumption issue been a >problem since day one? > >Have you load tested the app in any way? Does the app run ok until you >reach or surpass a concurrent user volume level? > >Are there stack traces associated with the error in the log files? > > > >You need to find out what objects are using this memory. You can use a >profiler tool like Optimizit or Jprobe to help with this. Generally >speaking, these types of memory utilization issues stem from something >within the application, so that's generally the most effective place to >start with your fault isolation activities. Large queries or use of >sessions are areas to examine. Hope this helps. > > > >Skip > > > > > >-----Original Message----- >From: Miguel Sartori [mailto:[EMAIL PROTECTED] >Sent: Thursday, March 02, 2006 1:29 PM >To: JRun-Talk >Subject: jrun memory leak and performace > > > >Hi, > > > >i'm having a big problem with an application running un IIS6/JRUN4 >Udater 6 and ORACLE 9i. All in W2003 64 bits. jvm j2sdk1.4.1_02. > >The config of the virtual machine is: > >java.args= -Xmx1024M -Xms512M -Dsun.io.useCanonCaches=false > >-XX:MaxPermSize=128m -XX:NewSize=32m -XXPermSize=32m >-XX:+DisableExplicitGC > > > >in jrun.xml > >Scheduler service > > <attribute name="bindToJNDI">true</attribute> > > <attribute name="activeHandlerThreads">250</attribute> > > <attribute name="maxHandlerThreads">1000</attribute> > > <attribute name="minHandlerThreads">50</attribute> > > <attribute name="threadWaitTimeout">180</attribute> > > <attribute name="timeout">300</attribute> > > > >the metrics web in extreme load > > > >02/03 16:05:26 metrics Web threads (busy/total): 10/77 Sessions: 831 >Total Memory=1040512 Free=416055 > > > >The app starts ok, but in a few minutes it starts to throw >java.lang.OutOfMemoryError and consume 600 mb of memory at once. > >Later works for a few hours comsuming "slowly" the rest of the memory >until die. > > > >The problems exist too in an old 32 bits envoiroment. > > > >Anywone now how can i resolve it or from where can i start. > > > >Thanks a lot. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:8:5741 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/8 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:8 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.8 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
