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application server clustering  RSS feed

 
Frank Sikuluzu
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we only hear people say "application server clustering". If we have several application servers participated in the clustering, do they need to be installed on different physical machine ?
 
Stan James
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We have three machines (actually LPARs on big IBM boxes) with two instances of WebSphere and our application on each LPAR. We consider it a cluster of six application servers. Almost all the issues you have with separate machines - sharing state, load balancing, etc - are the same with separate JVMs on the same machine. I guess that would mean the "virtual" machine is pretty "realistic."
 
Joyce Lee
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Clustering can be achieved through vertical scaling or horizontal scaling. Read this article.
 
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