GC overhead limit exceeded

Legacy User

Hello,

for an extensive GridParameterOptimization, RapidMiner terminates after
a while with:

OutOfMemoryError
Process failed Message:
GC overhead limit exceeded

How can I fix this problem?

More memory for the JVM is not possible since all my 4GB are already
used.

On
http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html#par_gc.oom
I found that with the option "-XX:-UseGCOverheadLimit" this error can be
avoided. Is this a good solution?

Or should I try to integrate the MemoryCleanUp operator into my model (which
is very simular to sample 11 in the meta validation directory).

Best regards,
Sascha

Legacy User

Hey Sascha,

If your app has a lot of concurrent procceses, or it uses a lot of recursion, you should take a look at the Concurrent Collector ..

Here you'll find a lot of information about it http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html#par_gc.oom

If you have multiple proccessors, then the Concurrent Collector may be very helpful here ..


Hope this helps ..


C ya