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These characteristics are essential for enterprise applications deployed in a production environment. If you are still in development mode, you do not need a cluster, but once you are ready to start testing and to go into production, where performance and reliability are critical, you should create a cluster.
For additional general information on clustering, see the following resources:
- Why Clustering: http://publib.boulder.ibm.com/html/as400/v4r4/ic2924/info/RZAIGRZAIGA02.HTM
- Why Would Anyone Need a Computer Cluster?: http://obscuredclarity.blogspot.com/2008/10/why-would-anyone-need-computer-cluster.html
WSO2 clustering methodology
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