[rules-users] memory issue when listening to market data

[Cheng, Ping]

All,
 
I wrote a server which listens to the market data and generates alerts
based on some conditions.
It listens to about 300 symbols and contains  30 simple rules. It works
fine when the market is quiet. It uses about 500 M in memory and there
is no big difference between reports from top and jconsole.  When market
is busy, memory displayed in jconsole is still ok, but top reports much
more memory and it did not come down at all. Sometimes it could reach
50G when it's a crazy day.
 
I used jmap to check the memory map  and it looks fine from java view, I
wonder if drools hold something when it's very busy? What is supposed to
happen if drools could not handle the work load?
 
Thanks for your help.
 
-Ping

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