使用GridFS插入大对象

Question

由于MongoDB本身目前每个文档限制为16MB，我正在尝试使用GridFS来克服障碍。

目前，我的代码看起来像是：

const string INPUT_FILE = @"C:\Users\...\CP001814.gbk";

// Set up connection to database
string connectionString = "mongodb://localhost";
MongoClient client = new MongoClient(connectionString);
MongoServer server = client.GetServer();
MongoDatabase db = server.GetDatabase("genomedb");
MongoGridFS grid = new MongoGridFS(server, "genomedb", new MongoGridFSSettings());

// do something with the input file which returns an ISequence 'sequence' object

MongoGridFSStream stream = grid.Create("CP003814.gbk");
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(stream, sequence);
MongoGridFSFileInfo info = db.GridFS.Upload(stream, "CP003814.gbk_sequence");
stream.Close();

我在这里做错了什么？目前，当我运行它时，它会创建fs.files文件元数据，长度= 0，并且fs.chunks上没有任何内容。