bloom (from basho) uses a NIF implementation which
may be faster and use less memory; test before use.
The “old” bloom, a.k.a. “scalable bloom”
is pure erlang, which also has nice properties.
Note! Switching to ebloom changes the file format
so the default is still to use ‘scalable bloom’.
BREAKING CHANGE! This change provides for future
file format changes, but also breaks backwards
compatibility.
Also describe the file format in design_document