raft-mdb 
This repository provides the raftmdb package. The package exports the
MDBStore which is an implementation of both a LogStore and StableStore.
It is meant to be used as a backend for the raft package here.
This implementation uses LMDB. LMDB has a number of advantages to other embedded databases includes transactions, MVCC, and lack of compaction.
The one disadvantage is because it is a C library, it requires the use
of cgo which complicates cross compilation. For that reason, this is
in a separate package from raft, so that clients can avoid cgo if
they so choose.
Documentation
The documentation for this package can be found on Godoc here.