Monitoring in GlassFish v3 Prelude
By bloggerprashanth on Nov 06, 2008
GlassFish v3 Prelude uses the new lightweight monitoring framework to expose the monitoring data. It moves away from the 'container's collect statistics' theme to 'container's emit events and interested listeners will collect them'. This allows the statistics to be collected in a much cleaner way and makes it more flexible to collect different variations of statistics for the same set of container events. For Prelude we expose the Web Container, Application and JVM statistics, using the asadmin CLI utility and Admin GUI. The Monitoring chapter in Administration Guide, give details of the exhaustive list of statistics that are available in v3 Prelude.
Also It is very easy to extend the monitoring in V3 Prelude, either to emit your own events for a custom component, or to write a new set of listeners thus exposing new statistics for existing container's. Check out here on how to do this.
Following are the other links related to GlassFish v3 Prelude
http://www.sun.com/software/products/glassfishv3_prelude/get.jsp (download page)
Announcement and videos on jsc/javaee and dsc/appserver:
http://java.sun.com/javaee/community/glassfish/ (under What's New)
http://java.sun.com/javaee/overview/screencasts.jsp (new videos listed under GlassFish Videos)
http://developers.sun.com/appserver/overview/screencasts/ (new videos listed under GlassFish Videos)
Announcement and videos on SDN Program News blog: