[dlsspy]

Membase is a clustered data storage service your application uses.

LevelDB is a persistence library.

That makes LevelDB the kind of thing you plug into membase to get the unique properties it has to offer (or at least for fun).

[pjscott]

In fact, the Riak guys are planning on doing exactly that: offering LevelDB as one of the storage back-ends, perhaps even the default.

http://blog.basho.com/2011/07/01/Leveling-the-Field/