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From Rainer Jung <>
Subject Re: tomcat5.1 out of memory for swap space not released!
Date Tue, 25 Sep 2007 06:42:35 GMT
You configured your JVM to use 1GB of memory plus 800MB for perm space. 
This only makes sense, if your machine has that much memory. As far as I 
know, perm adds to the heap. You system has 4 GB of memory. Are there 
other big memory consumers there? Can you check the size of the process?



> I am a Chinese and English is not well,but I will try my best to
> express myself.I have HP-UX operation system with JDK1.5 and
> sybase.But after tomcat5.0 running for some times ,it would out of
> memory.The tomcat5.0 process continuously allocated swap space but
> not released it.So when swap space was insufficient,tomcat out of
> memory and shutdown!Below is some
> information:=============================================================================================tomcat
> startup script parameters: JAVA_OPTS="-Xms1001m -Xmx1001m
> -XX:MaxPermSize=800m
> -Dfile.encoding=GBK"=============================================================================================out
> of memory log in cataline.out:2007-08-29 17:38:07.283
> (] DEBUG - render Id = pagination  Exception
> java.lang.OutOfMemoryError: requested 74856 bytes for GrET* in
> /CLO/Components/JAVA_HOTSPOT/Src/src/share/vm/utilities/growableArray.cpp.
> Out of swap space?Possible causes:    - not enough swap space left ,
> or    - kernel parameter MAXDSIZ is very small. Out of memory while
> reading in symbol table of
> /opt/java1.5/jre/lib/PA_RISC2.0/server/ 0)  0xc5c88264
> [/opt/java1.5/jre/lib/PA_RISC2.0/server/]( 1)  0xc5c241d0
> [/opt/java1.5/jre/lib/PA_RISC2.0/server/]=============================================================================================Hp
> Unix Server hardware information
> :CPU:1GHz*2;memory:4G;=============================================================================================Please
> give me an idea in this situation! And please help me make tomcat
> process release swap space?yanyan 

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