Java Magazine - January/February 2012

Conclusion

This article introduced the centralized cluster provisioning and management of GlassFish clusters. The ability to get a new host up and running remotely as long as it has an SSH server and a Java SE runtime is especially powerful. We deployed a simple stateless application to a cluster and played with common administration commands to check the state of our cluster and manipulate instances.

The next article in this two-part series shows how to enable high availability of stateful applications deployed to our cluster by providing transparent session failover. </article>

COMMUNITY JAVA IN ACTION

Figure 6

Figure 8

We can check that ClockEE was transparently deployed to the vm1 instance when it was launched, provided that it had already been deployed to my-first-cluster (see Figure 5).

as was mentioned earlier, that is not the only option. A REST Web service interface is available for easily integrating GlassFish with third-party management systems. There is also a Web administration console that provides an intuitive graphical interface.

Both are on par with the equivalent asadmin shell commands.

Figure 6, Figure 7, and Figure 8

provide a few screen-shots of using the Web administration console to perform a few tasks we did from the command-line before.

LEARN MORE

•;GlassFish product documentation •;“Clustering in GlassFish Version 3. 1” •;GlassFish videos on You Tube

•;Real;World;Java;EE;Night;Hacks— Dissecting;the;Business;Tier by Adam Bien ( press.adam-bien.com, 2011)

•;Beginning;Java;EE;6;with;GlassFish;3 by Antonio Goncalves (Apress, 2010)

•;The;Java;EE;6;Tutorial:;Basic;Concepts fourth edition by Eric Jendrock, Ian Evans, Devika Gollapudi, Kim Haase, and Chinmayee Srivathsa (Prentice Hall, 2010)