To me, and a few people that I know, the most interesting part of MapR was their NFS server over multiple nodes. It solved a real problem that real customers (i.e. enterprises with money for whom tech made stuff work and not was work in itself) were willing to pay a lot of money for ( see Isilon, EMC, NetApp, etc ) but that was a non-sexy part of the MapR business -- Big Data part was much sexier.<p>Over the last 5 years the real money making enterprises solved their "it should look like a big file system" problem so "the rest of our stuff works" issue stopped being an issue ( in a process Isilon got bought by the EMC, EMC got bought by Dell ) either by buying those specialized solutions, moving to object store or building home grown systems that worked with their specific applications and big data people went with newer, more shiny big data solutions, leaving MapR with no market.