mongoConnection2.getDB().dropDatabase();
// DB1 handled by the AbstractMongoConnectionTest
DB db = mongoConnection.getDB();
mk1 = new MongoMicroKernel(mongoConnection, new MongoNodeStore(db),
new MongoGridFSBlobStore(db));
DB db2 = mongoConnection2.getDB();
mk2 = new MongoMicroKernel(mongoConnection2, new MongoNodeStore(db2),
new MongoGridFSBlobStore(db2));
DB db3 = mongoConnection3.getDB();
mk3 = new MongoMicroKernel(mongoConnection3, new MongoNodeStore(db3),
new MongoGridFSBlobStore(db3));
}