Ok, I have taken all the posts seriously. I have not ran into a solution. Let me work on the suggestions you provided. I resolved the OOME , but I am worried about scaling users in my server, if tomcat consumes this much memory. As you said since tomcat is not taking the memory I will further investigate as to why the memory gets used this much. Thanks again for all the help provided. Sorry for me being so obtrusive.
On 10/17/07, Christopher Schultz <[EMAIL PROTECTED]> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Arun, > > Arun wrote: > > I am replying once again, as I thought I need more help on these. > > > > top - 15:49:32 up 2 days, 21:33, 1 user, load average: 0.26, 0.28, > 0.20 > > Tasks: 57 total, 2 running, 55 sleeping, 0 stopped, 0 zombie > > Cpu(s): 4.5%us, 0.5%sy, 0.0%ni, 94.5%id, 0.0%wa, 0.0%hi, 0.5%si, > > 0.0%st > > Mem: 2074972k total, 2019180k used, 55792k free, 228732k buffers > > Swap: 6072528k total, 108k used, 6072420k free, 1383868k cached > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 12496 root 18 0 971m 285m 12m S 9 14.1 165:55.34 java > > 4423 mysql 15 0 129m 28m 5404 S 2 1.4 67:49.96 mysqld > > 1 root 18 0 2912 1848 524 S 0 0.1 0:01.44 init > > 2 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 > > This is my machines top. I am using tomcat 6 and it has eaten all my > memory. > > Only 56 Mb reamains. > > Actually, the java process is only taking 285MB of physical memory. The > process has allocated just under 1GB of memory, but is not using it at > all (since virtual - resident cannot possibly fit into your 108k of used > swap, you can tell that nothing has been swapped-out). > > Some other process has the rest of your 2GB physical memory tied up. top > even tells you that your java process is only taking up 14% of your > memory. What's the problem? > > > I have a 2GB memory. I have added a connection pool > > using commons-dbcp and thought that will reduce the probs. > > How many connections do you have configured? If you were using one > connection before, and now you're pooling connections, then you probably > are using /more/ memory than before. > > > As I told there is a [Quartz] scheduler running on every minute. > > > > Looks > > like I have some memory leak. > > Maybe, maybe not. Does your application eventually crash? If so, how? If > you turn off the scheduler, does the memory problem go away? What does > Java report as the free/total/ma heap values (hint: look at the > java.lang.Runtime class). > > > Otherwise why does my machine uses this memory > > this much. I have an autobuild script running everyday which checkouts > from > > sourceforge cvs , stops the servers, build it and redeploy and start > tomcat. > > So, you are experiencing an OOM before an entire day goes by? Wow. I've > never heard of rolling reboots on non-MS-Windows machines. ;) > > > I have not used any tweaks in xml.Should I tune the server to production > > mode. What is the solution? Why does not the objects get garbage > > collected.? > > You have received many, /many/ suggestions from other posters as well as > myself. You have followed none of them. We ask you to provide more > information and you do not. Instead, you notify us that you are trying > some other strategy (switching JVM version, etc.). Finally, you changed > your PermGen heap allocation and everything was working again. > > Are you saying that now you are having problems again? Or, are you > simply worried about the amount of memory taken by your application? > Java applications simply take up a lot of memory. Complex applications > take up a lot of memory. Complex Java applications take even /more/ > memory. Webapps count as complex applications. Maybe you just need a > bunch of RAM to run your application. Have you considered that? > > - -chris > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFHFhOP9CaO5/Lv0PARAtb9AJ9E6a+oOpSMWVDTdyMY2I7RYn5U1QCdHgVO > BUSCpyDFzkEBOitqqH2UQgo= > =pc4x > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Thanks Arun George
