Hi, I have the memory issue/performance with the following situation:
a. The machine installed with Solaris 10, with memory 2GB and swap space 4GB. b. Running Tomcat 5.5.26 with one application at Xmx1024m and -Xmx256m using JDK1.5.0_22. c. 10 standalone clients are sending the web service request to application for processing the task using xmlrpc.jar continuously. d. The script is used to get the system properties, e.g. java.home, java.class.path, os.name, etc and then construct the http response send back the client. e. After 1 week plus, the web users require very long time to login and somehow the page cannot be displayed. I have done the following to monitor the issue: a. Monitor the rss, vsz using ps -eo command, found that the rss and vsz were increased slightly over time, until hitting 1.70G where the web users experience slow performance on the page navigation in the tomcat. b. I ran the Tomcat by putting the -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGC, then analyzed that the gc heap over time is constant. c. Use jconsole to record the heap and non-heap usage, triggerring Full GC, observed that the heap is reset to zero and the non-heap won't drop. Non-heap memory usage is increased over time. d. Don't know the reason why cannot get the Tomcat runs into OutOfMemory, the Tomcat shutdown itself without anything even the argument "-XX:+HeapDumpOnOutOfMemoryError" is applied. Did I missed out anything to track down the issue? Anyone, please suggest and correct me. Thanks. Regards, Chan. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
