Hi Mircea and RedHat, Dmitry, and I are now taking initial steps to code the integration of OpenHFT SHM as an off-heap ISPN7 DataContainer. We have mused that a possible approach to this may be to use the symmetry of ISPN7's existing DefaultDataContainer.java impl and (copy a/o extend) that existing work into a new org.infinispan.offheap.OffHeapDefaultDataContainer.java impl. The key steps would be for us to 100% soundly and 100% completely replace ConcurrentMap entries = CollectionFactory.makeConcurrentParallelMap(128, concurrencyLevel); with ConcurrentMap entries = entries = new net.openhft.collections.SharedHashMapBuilder() .generatedValueType(Boolean.TRUE) .entrySize(512) .create( new File("/dev/shm/offHeapSharedHashMap.DataContainer"), Object.class, InternalCacheEntry.class ); We are of course very newbie wrt to ISPN7 DataContainer internals. Before we get into building and testing compelling exercises and hardening the OffHeapDefaultDataContainer, would you please comment wrt to your view that this seems like the correct first steps? https://github.com/Cotton-Ben/infinispan/blob/master/off-heap/src/main/ja... -- View this message in context: http://infinispan-developer-list.980875.n3.nabble.com/Learning-ISPN7-Data... Sent from the Infinispan Developer List mailing list archive at Nabble.com.