TIBCO Business Events: Can a single Cache Server supports multiple Inference Engines?

"Yes" would not be the correct answer to this question neither "No" is the wrong answer. Partially this is true and partially it is not. Actually it is possible when all the engines including inference engine, query engine and the cache engine share the same ear file. This restriction is to ensure that, signature of all the entities must be known to cache engine. Although the separation of the entities can be done at CDD (Cluster deployment Descriptor) level. One may creates different collections of rules, rule functions, destinations and assign this collections to different Inference and Query engines except Cache engine as shown below.

So, in simple words single Cache engine can serve for single project containing multiple other engines. But a single Cache engine cannot work for multiple project or EARs.