app.js里的连接代码 var mongoose = require(‘mongoose’);

app.get(’/shard_add’, routes.add); … http.createServer(app).listen(app.get(‘port’), function(){ var uri = ‘mongodb://127.0.0.122:12345,127.0.0.242:12345,127.0.0.175:12345/syt’; var opts = { mongos: true }; mongoose.connect(uri, opts, function (err) { if(err){ console.log(err); }else{ console.log("#############################################"); console.log(“connection mongodb success…”); } }); console.log('Express server listening on port ’ + app.get(‘port’)); });

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routes下的index.js

var mongoose = require(‘mongoose’); var Schema = mongoose.Schema; var ObjectId = Schema.ObjectId;

var NodeShardSchema = new Schema({ codeid : String, name : String }); var NodeShardSchemaCollectionName = ‘NodeShard’; var NodeShard =mongoose.model(‘NodeShard’, NodeShardSchema, NodeShardSchemaCollectionName);

exports.add = function(req, res){ for(var i=0; i<10; i++){ var node_shard = new NodeShard(); node_shard.codeid = i+""; node_shard.name = “_”+i; node_shard.save(function(err){ if(!err){ console.log(" save success!"); }else{ console.log(err); } }); } };

版本如下： nodejs: v0.10.26 mongoose: 3.8.x express: 3.4.8

以上这段代码，是连接到mongodb3.0.4的分片，连接提示是成功了的，但不知道为什么一执行add的方法之后就报driver is incompatible with this server version，具体如下：

Mongoose: NodeShard.insert({ __v: 0, _id: ObjectId(“55c4c14659daef437cbad1c8”), codeid: ‘9’, name: ‘_9’ }) {}
{ [MongoError: driver is incompatible with this server version] name: ‘MongoError’ }

请问是那里写得不对导致的呢？是否需要升级nodejs或mongoose?如果是mongoose的话，看了一下官网，这个应该是最新的了。

谢谢大家的帮忙！