are you seeing anyone trying to use the dependency tree in your request logs?
I suggest disabling it (see http://jira.codehaus.org/browse/MRM-665) - Brett On 01/03/2011, at 10:17 AM, Michael March wrote: > In the past few months our 1.2.1 server (running on Centos 5.5 / JDK > 6) would, after an hour or two of 'normal' operation, spike the CPU > load to 10+. > Recently we upgraded to 1.3.4 and our serveris running a little > smoother but then after a few hours it will go back to 10+ again. > Here's a recent output of "top": > > top - 09:08:43 up 1 day, 15:28, 1 user, load average: 13.52, 12.05, 11.56 > Tasks: 105 total, 10 running, 95 sleeping, 0 stopped, 0 zombie > Cpu(s): 56.3%us, 6.3%sy, 0.1%ni, 34.5%id, 0.4%wa, 0.0%hi, 2.3%si, 0.2%st > Mem: 2097152k total, 2035216k used, 61936k free, 51448k buffers > Swap: 524280k total, 136k used, 524144k free, 766424k cached > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 27233 tomcat 18 0 1241m 906m 9716 S 61.5 44.3 953:33.33 java > > 23841 postgres 15 0 152m 16m 13m R 31.5 0.8 37:44.30 postmaster > 27269 postgres 15 0 153m 31m 28m S 16.5 1.6 425:21.18 postmaster > 23783 postgres 15 0 152m 25m 23m S 13.5 1.3 38:24.97 postmaster > 27268 postgres 15 0 152m 35m 32m S 12.0 1.7 189:07.95 postmaster > 18653 postgres 16 0 152m 29m 26m R 4.5 1.4 120:31.79 postmaster > 27668 postgres 16 0 152m 28m 26m R 4.5 1.4 199:01.50 postmaster > 9560 root 35 19 260m 23m 6844 R 3.0 1.1 0:00.92 yum-updatesd-he > 23274 postgres 15 0 152m 25m 23m S 1.5 1.3 38:29.17 postmaster > 1 root 15 0 10348 692 580 S 0.0 0.0 0:00.37 init > 2 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0 > 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 > 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 > 5 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/0 > 6 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khelper > 7 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 kthread > 9 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 xenwatch > > > ... this is after a few hours of operation and once it hits this high > load it never comes down. > > Is there anything I should be looking at to fix this? > > > -- > <cowmix> -- Brett Porter br...@apache.org http://brettporter.wordpress.com/
