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From "Li,Henry" <>
Subject what is the upper limit of maximum heap memory for Tomcat with 32-bit JVM running on Red Hat Linux 4 (32-bit)
Date Thu, 23 Jul 2009 23:01:35 GMT
My Tomcat is running on 32-bit Red Hat 4 (2.6.9-78.0.1.ELsmp), host server has 8G physical
memory and 4 processors.
 java version "1.4.2"  gcj (GCC) 3.4.6 20060404 (Red Hat 3.4.6-10)
I got java.lang.OutOfMemoryError
Current configuration: -Xms1024M -Xmx2304M
The host server has about 4.5G free memory. When I tried to increase -Xmx2304M to -Xmx3000M,
I got this error:
Error occurred during initialization of VM, Could not reserve enough space for object heap
The maximum # I can reach is -Xmx2680M.
QUESTION: Is there an upper limit for -Xmx? What is the work around? How can I use my free
memory on the server to
get rid of the OutOfMemoryError?


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