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

[Cheng, Ping]

It's Linux 2.6.9-42.0.10.ELsmp,  with Sun jdk1.5.0_08. If top is not
reliable, how should I detect if there is any native memory leak?
 
 
Thanks.
-Ping

________________________________

From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Augusto
Rodriguez
Sent: Monday, September 29, 2008 11:40 AM
To: Rules Users List
Subject: Re: [rules-users] memory issue when listening to market data


Hi Ping,

Which OS are you using? Because top doesn't work very well in all OSs
(for example solaris).


Cheers,
Augusto

Cheng, Ping wrote: 

	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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