Yap pretty big.<p>Allegedly this has already been running at Klarna in production for a while. LevelDB backend from Basho (eleveldb, it has extra optimizations and improvements besides just Erlang wrapper) has been used.<p>Granted 15-20 some years ago perhaps 2GB was BigData(TM) ;-)<p>For a while I understand you could set up sharding, so each shard is 2GB and spread shards across nodes.