CMS collection keep working during holiday

[kirk]

Ken-- at newsgroupstats.hk wrote:
> Follow up to the jconsole above. This gif is captured today. You can see the
> first CMS after a FULL GC is working. The 2nd one is working too but the
> memory free from 2nd generation is much less than the first CMS. The memory
> free by 3rd CMS is further decreased.
>
> The 5th CMS cannot free enough memory to make occanpcy in old-gen to less
> than 70%. So, continue non-stopping CMS happen again until a Full GC
> (triggered by Concurrent Mode Failure).
>
> http://www.nabble.com/file/p19872463/jconsole_20081008.jpg 
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If GC is failing to recover memory, you either have a memory leak or 
long loitering objects. I'd suggest visualvm or netbeans memory 
profiling using the generations option to find out what objects are 
surviving

Regards,
Kirk