Hello,
I have many memory consuming apps on my tomcat server. I a lot pdf & excel generation. So every other week I get this error java.lang.OutOfMemoryError: PermGen space I know the root of this error is that the garbage collector does not clean up and memory allocated for java object generation is used up. But what can I do about it? If I allocate more memory I'm only postponing the problem. So do I have to shutdown every day my tomcat server to ensure the deletion of unused objects or Will only a tomcat cluster help in this case? I also read the archives but could not find any useful explenation. I defined max memory usage for 2 Gig with the Catalina_Opts variable in my start script. CATALINA_OPTS="-Xmx2048m -Xms1536m" Tomcat 5.5.9 Java 1.5.0_04-b05 SuSE Linux ES 9 Cheers, Pete SCHWERWIEGEND: Servlet.service() for servlet jsp threw exception java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor10" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor11" Exception in thread "TP-Processor1" java.lang.OutOfMemoryError: PermGen space java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor7" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor6" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor2" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor12" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor5" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor9" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor16" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor15" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor14" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor13" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor20" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor18" Exception in thread "TP-Processor19" java.lang.OutOfMemoryError: PermGen space java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor17" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor24" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor23" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor22" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor21" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor28" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor27" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor26" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor25" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor32" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor30" Exception in thread "TP-Processor29" Exception in thread "TP-Processor31" java.lang.OutOfMemoryError: PermGen space java.lang.OutOfMemoryError: PermGen space java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor36" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor35" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor34" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor33" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor39" Exception in thread "TP-Processor37" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor40" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor38" java.lang.OutOfMemoryError: PermGen space java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor44" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor43" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor41" Exception in thread "TP-Processor48" java.lang.OutOfMemoryError: PermGen space java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor42" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor46" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor47" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor45" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor52" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor51" java.lang.OutOfMemoryError: PermGen space Exception in thread "TP-Processor50" java.lang.OutOfMemoryError: PermGen space
