GC listener

[YU ZHANG]

Milan,

You can use mbeans to to monitor gc activities:
http://docs.oracle.com/javase/7/docs/technotes/guides/management/mxbeans.html
Here is an example:
http://www.fasterj.com/articles/gcnotifs.shtml

It is hard to predict full gcs.  Maybe MemoryPoolMXBean for old gen can 
have some thing like mBean.setUsageThreshold(yourThreshold), then in the 
handleNotification method do what you need to do before full gc?

Thanks,
Jenny

On 3/21/2014 3:37 AM, Milan Mimica wrote:
> Hello
>
> Would it be possible for the application to register some kind of a 
> listener to track GC activity, and that way predict when Full GC is 
> going to happen?
> My application is a service behind a load balancer, and if it could 
> see Full GC which stops the world coming, given some time to react, it 
> could exclude itself from the balancer.
> //
>
> *Milan Mimica, *Software Engineer / Team Leader
>
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