How to monitor Chart Server/Javahost is up?

Question

I'm having difficulty setting up a monitoring function to ensure Chart Server/Javahost is up in our OBI EE environment.
I want to be notified if it goes down.
So far I've tried using the Oracle BI management pack add-on for Enterprise Manager Grid Control
--After verifying the JMX credentials and starting up the agent (nohup ./runagent.sh &), and waiting for an hour, the EMGC performance tab only shows 0.0 (zeroes) for the collected metrics for Chart Engine.
All the other metrics on this page return normal numbers such as 33%, etc. It seems to be working, it's just the data is all zeroes. -?
I also tried using a simple shell script to collect the % cpu utilization of the javahost process every 1 sec for an hour, during normal load times.
ps -eo pcpu,pid,args | grep "javahost" | awk '{print $1}' | awk -F% '{print $1}'
Same thing: It collected almost all zeroes (0.0) for all output, except one single case of "0.1" sometime in the middle.
Any ideas on why the %cpu is almost always 0.0 ? Or if there's a better way to verify that Chart Server is up and working?
Right now I've created a metric under Enterprise Mgr to check every 5 minutes if the javahost port (9810 tcp) is listening.
But that is not the greatest validation, IMO.
Thanks for any feedback/solutions!

Answer 1

rnm1978 -thanks for your reply.
I'm monitoring chart server because sometime last year, our BI server app went down due to chart server. That process started taking up cpu and saturated it.
We ended up having to kill -9 the pid and restart sawserver.
In this scenario, I'm thinking my script would probably still report that port 9810 is listening and we wouldn't be informed of the problem at hand.
I'm using Oracle Enterprise Manager Grid Control 10g as our monitoring app. We don't have/use HP openview since we're an oracle shop.
--Thanks for any more ideas/feedback