In addition to our partnership with SUN we, Yenlo , developed an unique plug-in for our support department to be used in combination with Oracle Enterprise Manager Grid Control. With this unique plug-in we are able to monitor and pro-actively act on statistics gathered on the Glassfish Application server. Alot of information can be gathered from the the JMX connector which is the basis of our plug-in. Our focus on a stable and reliable environment made us choose certain components to be monitored more actively then others. Some key features of our plug-in are :

- Pro-actively report Memory problems
- Show hierarchy domains and its component
– Clusters
– Instances
- Connection pools
- Trigger on logfile events
and much more …

Here is a preview on our heapsize memory monitoring :

When gathering information on you Glassfish Application server with Oracle Enterprise Manager Grid Control. You are able to report on a long term periode of memory usage as shown below :

or just short term periode ,

This information can help you explain certain behavior when using the Glassfish Application Server.

Soon more information will be shared on this unique monitoring solution.