Elastic Scaler Design

Based on http://community.jboss.org/message/526687

 

Use rules/CEP to collect data from mod_cluster: http://www.jboss.org/mod_cluster/java/load.html

Rules can then be applied to decide if it is time to scale up or scale down the cluster.

Additional rules can kick in when a new node is required - to see if it can be multi tenanted on an existing instance.

 

see also: http://anonsvn.jboss.org/repos/mod_cluster/trunk/src/main/java/org/jboss/modcluster/load/metric/impl/