Hi. I would suggest settings some JVM memory switches, for example:
-XX:+UseParallelGC (you have multiple processors?) -XX:+DisableExplicitGC (in case code is calling System.gc()) -Xss128k (Small native thread stack size mem allocations) Also - you will notice that your error is related to the SWAP space of your OS - so would investgate upping that at an OS level. Hope it helps, Regards, Carl -----Original Message----- From: Sethuraman, Prabhu (Cognizant) [mailto:[EMAIL PROTECTED] Sent: 07 December 2005 12:11 To: Tomcat Users List Subject: Tomcat 5.0.18 crashes everyday Folks, We have been facing issues with an application that has been good and working hard for almost a month without any issues. Its just that we get an OutofMemory error and the JVM dies! Below are the errors that I have seen so far: 1. Exception java.lang.OutOfMemoryError: requested 512000 bytes for GrET* in /export1/jdk142-update/ws/fcs/hotspot/src/share/vm/utilities/growableArray.c pp. Out of swap space? 2. Exception java.lang.OutOfMemoryError: requested 32756 bytes for ChunkPool::allocate. Out of swap space? Tomcat logs indicate an attempt for Garbage collection just before this error. This is what we saw in the logs: [Full GC Exception java.lang.OutOfMemoryError: requested 32756 bytes for ChunkPool::allocate. Out of swap space? Any ideas on how I can start debugging this problem. We use tomcat 5.0.18 with jdk 1.4.2_05 on a Solaris box. Heap size is set to 1512m and so we feel there is enough memory available to the application. Thanks, Prabhu S This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email or any action taken in reliance on this e-mail is strictly prohibited and may be unlawful. Visit us at http://www.cognizant.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
