Question

我正在尝试连接到MongoDB Atlas，但出现此错误

(node:7191) DeprecationWarning: current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
{ MongoError: no mongos proxy available
    at Timeout.<anonymous> (/home/gaurav/Downloads/Assignments/DevConnection_2.0/node_modules/mongoose/node_modules/mongodb/lib/core/topologies/mongos.js:739:28)
    at ontimeout (timers.js:498:11)
    at tryOnTimeout (timers.js:323:5)
    at Timer.listOnTimeout (timers.js:290:5) name: 'MongoError', [Symbol(mongoErrorContextSymbol)]: {} }

我正在尝试这样连接

db = "mongodb+srv://<username>:<password>@devconnector-sk8na.mongodb.net/test?retryWrites=true&w=majority" 
try{
    await mongoose.connect(db, { useNewUrlParser: true})            
        console.log("MongoDB Connected..")
} catch(err){
    console.error(err);
    process.exit(1);
}

在使用时，我还替换了用户名和密码。

我应该得到这个输出-

MongoDB connected...

我正在使用， “猫鼬”：“ ^ 5.8.1”，

即使我降级到Mongoose版本5.6.13，“弃用”警告也消失了，但仍然存在以下错误-

{ MongoError: no mongos proxy available
    at Timeout.<anonymous> (/home/gaurav/Downloads/Assignments/DevConnection_2.0/node_modules/mongodb-core/lib/topologies/mongos.js:736:28)
    at ontimeout (timers.js:498:11)
    at tryOnTimeout (timers.js:323:5)
    at Timer.listOnTimeout (timers.js:290:5) name: 'MongoError', [Symbol(mongoErrorContextSymbol)]: {} }

Answer 1

不降级，

您可以在useNewUrlParser:true旁边添加此行，然后再次运行吗？

useUnifiedTopology: true

您的代码应如下所示

db = "mongodb+srv://<username>:<password>@devconnector-sk8na.mongodb.net/test?retryWrites=true&w=majority" 
try{
    await mongoose.connect(db, { useNewUrlParser: true, useUnifiedTopology: true })            
        console.log("MongoDB Connected..")
} catch(err){
    console.error(err);
    process.exit(1);
}

为什么猫鼬没有连接到MongoDB Atlas？

1 个答案: