hi all a quick question that you would find stupid but...
Looking at Zookeeper, you need 3 nodes to support 1 node failure. Looking at in memory data grid (coherence & co...), with 2 replicas, you can still continue working. So "basically", you need less replica to support the same amount of failure. I am not saying one is better than the other ;), cause we are using both, but does some of you know why the difference? I assume this is related to the Zab protocol but if you have more details. What are the guarantees zookeeper provide and a data grid does not provide? the lock? a sequential consistency? Many thx for your answers oliv/
