I am running into a curious problem running JBoss on SLES8 31-bit on VM4.3. The instance has been allocated 128Mb of physical memory and approx 512Mb of swap. We have the VM configured to use QDIO with the OSA adapter in the z/800.
I'm currently testing this problem using IBMJava2-s390-131 and IBMJava2-s390-141. The problem I am experiencing is that the instance the JBoss container is running on will, after JBoss has been up and running (and unused) for sometime, hit 100% CPU usage, and there is no way to regain access or control of the box short of a hard-restart. We believe we have narrowed the problem down to the java virtual machine and/or JBoss 3.2.3. The following is output from top that was left running before the instance crashed. You'll note that the JBoss java processes have run amok. [ -- snip -- ] 12:29am up 10:38, 1 user, load average: 20.43, 20.28, 19.85 89 processes: 67 sleeping, 22 running, 0 zombie, 0 stopped CPU states: 5.1% user, 94.8% system, 0.0% nice, 0.0% idle Mem: 126064K av, 123448K used, 2616K free, 0K shrd, 8148K buff Swap: 575584K av, 77184K used, 498400K free 12544K cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND 886 jboss 25 0 16844 11M 140 R 5.7 9.6 5:55 java 887 jboss 25 0 16844 11M 140 R 5.7 9.6 5:53 java 893 jboss 25 0 16844 11M 140 R 5.7 9.6 6:03 java 913 jboss 25 0 16844 11M 140 R 5.7 9.6 5:50 java 918 jboss 25 0 16844 11M 140 R 5.7 9.6 5:50 java 920 jboss 25 0 16844 11M 140 R 5.7 9.6 5:50 java 925 jboss 25 0 16844 11M 140 R 5.7 9.6 5:49 java 928 jboss 25 0 16844 11M 140 R 5.7 9.6 5:53 java 929 jboss 25 0 16844 11M 140 R 5.7 9.6 5:56 java 932 jboss 25 0 16844 11M 140 R 5.7 9.6 5:53 java 933 jboss 25 0 16844 11M 140 R 5.7 9.6 5:54 java 934 jboss 25 0 16844 11M 140 R 5.7 9.6 5:54 java 941 jboss 25 0 16844 11M 140 R 5.7 9.6 5:53 java 955 jboss 25 0 16844 11M 140 R 5.3 9.6 5:51 java 944 jboss 25 0 16844 11M 140 R 4.2 9.6 5:52 java 2612 root 16 0 880 840 652 R 3.6 0.6 20:04 top 892 jboss 25 0 16844 11M 140 R 2.8 9.6 5:51 java [ -- snip -- ] At this point, we are persuing the path of trying to determine what, if anything, JBoss is doing outside of a user request. We are trying to determine 1) why are the processes for JBoss in the running state, it should be entirely idle; 2) why does the SIZE of the java process differ from when we first start JBoss (roughly 73600); 3) why does the RSS differ from when we first start JBoss (roughly 71M). Basically, I'm curious if anyone in the JBoss community is running JBoss with the IBM JVM on Linux for z/Series successfully. Any help is greatly appreciated. Troy Poppe ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
