[jboss-user] [JBossCache] - Re: problems with jalapeno/cayenne JBC optimistic cache with

[manik.surtani@jboss.com]

This really depends on your use case.  If you want a warm cache, replication is the best option.

Invalidation only really makes sense if you have a large data set (e.g., 50GB of data) and each node only handles a small subset of this data (e.g., 0.5GB).  THis way it is extremely unlikely that 2 nodes would need the same data in memory at any given point.  And as such,if data changes on one node, it should be evicted on other nodes - if the other nodes have it in memory.

OTOH, if you are using it to cache a set of drop down values, for example, which are needed on all nodes all the time, use replication.

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