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Taylann,

On 2/24/2010 8:31 AM, Taylan Develioglu wrote:
> Most memory is commited to tomcat, where a 24G machine would have 18G
> allocated to heap, 128M to permgen and some unspecified amount would get
> used by jni for apr. About 4G remains free after calculating taking into
> account the jvm itsself.
> A 16G machine would have 12G allocated to the heap.

Are you sure the rest of the JVM can fit into this space? I've heard of
JVMs (particularly on Windows) that take a significant chunk of memory
on top of the heap space requested on the command-line.

Definitely check your system logs for OOM killer, here.

What happens if you cut your heap in half? Can each machine in your
(probably) cluster survive with less heap space?

- -chris
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