Loss of connection onece a minute

[pinus]

I have an application which loses the connection once a minute. I  
could not find code that drops the line but it seems that my  
application drops the line. The TCP FIN message comes from my  
application. I use MINA version 2.0.0-RC1. The strange thing is that  
the same application works like a charm for hours in my test  
environment. The issues occur on production only.

How to debug in such a case? Is it possible to enable logging to get  
more information from MINA?