The Adventures of Sparky in Chennai!
By chinmayee on Oct 07, 2008
This blog summarizes my experience of delivering a tech talk on GlassFish to Wipro employees in Chennai, on Sep 29th 2008.
(And for those who don't know, Sparky is the mascot for GlassFish)
What I Covered- An intro GlassFish and Java EE
- GlassFish v2 features and cool new technologies like Shoal/GMS, Project Metro, and OpenESB.
- Demos: Creating a cluster, Adding cluster support to domains, GlassFish with NetBeans...
- An introduction to GlassFish v3 and new features The talk was attended by 58 Wipro engineers who are working on various Java EE technologies. Some of them had used GlassFish and some of them had only heard of it. There was a lot of interest about GlassFish and other projects such as Shoal and OpenESB.
A couple of the many questions I was asked1) How do I change the load balancer policy (the algorithm that the HTTP load balancer uses to distribute load to the server instances in a cluster)?
Use the asadmin create-http-lb command and define the --lbpolicy option as user-defined. Specify your load balancer policy in the --lbpolicymodule option.
2) How does the monitoring/callflow output compare to the jProbe profiler? What monitoring utlities are available?
See here for a comparison of GlassFish Callflow vs other profilers. Any tool that works with JMX data should be able to monitor GlassFish. You can use JConsole (bundled with JDK). Here's how to use NetBeans profiling tool and jprobe with GlassFish v3.
PicturesWith apologies for the poor quality...
Stephan from Wipro introducing me
All in all, it was a great experience! Thanks to my managers and to Sun Learning Services for the great opportunity!