Hi, Thanks for the reply. I will check with our database guys and let you know.
Anand >-----Original Message----- >From: john cho [mailto:[EMAIL PROTECTED] >Sent: Tuesday, June 01, 2004 8:32 AM >To: Tomcat Users List >Subject: Re: Memory problems with Tomcat 4.1.27 > > >There could be many issues related with this kind of problems. >1. Based upon your large loading process, check your database >with your dba such as how many open cursors and so on. 2. u >did not close each connection, statement, resultset and it >keeps building up. >3. I guess u are looping thru the loading. During the >looping, close any >loose hole. > > >once u identify any one of those, i can help u further. > >----- Original Message ----- >From: "Anand Narasimhan" <[EMAIL PROTECTED]> >To: "'Tomcat Users List'" <[EMAIL PROTECTED]> >Cc: "'Anand Narasimhan'" <[EMAIL PROTECTED]> >Sent: Friday, May 28, 2004 3:02 PM >Subject: Memory problems with Tomcat 4.1.27 > > >> Hi, >> >> I am trying to debug a memory consumption issue with an >application. I >> would appreciate any help I can get. >> >> The application I am debugging is a web application written using >> j2sdk 1.4.1_02 and struts 1.0.2. The tomcat version I am using is >> 4.1.27. The backend has a relational database >(sybase/oracle) and the >> database access >> is through JDBC. The tomcat server is running on Solaris 2.8. The max >> heap size >> for the JVM (using -Xmx) is set to 512M. I tried increasing >it to 1024M >> as >> well. >> >> The problem is under reasonably large load, the overall process size >> of tomcat (reported by top) keeps increasing and eventually tomcat >> stops responding. I >> tried running tomcat with OptimizeIt hoping to find out if >there are any >> leaks. >> When running with OptimizeIt the memory consumption increases much >> faster than >> when running without OptimizeIt. At this point OptimizeIt >reports that >> about >> 300M of heap is being used. But the overall process size is >about 900M. >> >> I tried turing on the -Xloggc option. The output of -Xloggc >also shows >> that the heap size is well withing the limits. In some cases towards >> the end of the >> GC log, I noticed that each GC cycle takes about 17 - 20 secs. >> >> Any suggestions regarding how to proceed debugging this >problem would >> be >> >> greatly appreciated. Are there any docs or any white papers >that would >> help understand the relation between the heap and the >overall process >> memory? >> >> Thanks >> Anand >> >> >> >______________________________________________________________________ >> __ >> >> Anand Narasimhan >> [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]
