Hi Jeff Sorry for the late reply, it's been a busy couple of weeks. :) I've cc'd infinispan-dev [1] as there are others who would be interested and may want to pitch in - I recommend your joining the list as well if you haven't already done so. Anyway, comments inline: On 5 Nov 2009, at 21:24, Jeff Garzik wrote: Nice stuff! Absolutely. I can see chunkd being an excellent storage node for a CacheStore, either being colocated alongside each Infinispan node (communicating over a local socket). Another potentially interesting and useful integration point - albeit more complex - is to use chunkd as a DataContainer [2]. You mentioned that chunkd could use a ramdisk partition delegating the memory mgmt to the kernel, thereby buying us storage outside of the JVM heap which could be interesting. I suppose for this to make sense chunkd's operations would have to map to DataContainer - particularly, it would need to support both FIFO and LRU ordering of entries so as to be able to access entries via an iterator. Have you thought about this? Do you actually need one? Just a Map is of limited use. If you want a richer API, folks probably could use Infinispan on top of chunkd (assuming a ChunkdCacheStore) - Infinispan's Cache interface extends ConcurrentMap. Or for a *really* simple API, perhaps what you need is a REST API. I've started a REST-* caching [3] [4] standardisation effort, haven't really had time to post much there as yet but it would likely look a lot like Infinispan's own REST API [5]. Cheers Manik [1] https://lists.jboss.org/mailman/listinfo/infinispan-dev [2] http://docs.jboss.org/infinispan/4.0/apidocs/org/infinispan/container/Dat... [3] http://www.jboss.org/reststar [4] http://groups.google.com/group/reststar-caching [5] http://www.jboss.org/community/wiki/InfinispanRESTserver -- Manik Surtani manik(a)jboss.org Lead, Infinispan Lead, JBoss Cache http://www.infinispan.org http://www.jbosscache.org