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solved:Mongodb Error : couldn’t connect to server 127.0.0.1:27017, connection attempt failed : solved in less than 2 minutes.
MongooseSeverSelectError:connect ECONNREFUSED 127.0.0.1:27017
connect ECONNREFUSED 127 0 0 127017 Resolved this error in mongo Db in English
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mongooseserverselectionerror connect econnrefused 127.0.0.127017 주제에 대한 자세한 내용은 여기를 참조하세요.

MongoError: connect ECONNREFUSED 127.0.0.1:27017

Go to Control Panel and click on Administrative Tools. Double click on Services. A new window opens up. Search MongoDB.exe. Right click on it …

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Source: stackoverflow.com

Date Published: 5/12/2022

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connect ECONNREFUSED 127.0.0.1:27017 – Ops and Admin

Hello, I am having trouble getting connected to my localhost MongoDB … MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017`.

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Date Published: 3/14/2022

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connect ECONNREFUSED 127.0.0.1:27017 Code Example

MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 … Go to Control Panel and click on Administrative Tools. … Double click on Services. A new …

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MongoError: kết nối ECONNREFUSED 127.0.0.1:27017

MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017].

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connect ECONNREFUSED 127.0.0.1:27017 – PeakU

MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017. I used mongoose to connect my database to my app.

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[Question] Connect fail MongooseServerSelectionError …

But on the server, it keeps saying connect ECONNREFUSED 127.0.0.1:27017, I have researched for more than 4 hours but still no results.

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connect ECONNREFUSED 127.0.0.1:27017 – Webmatrices

… 4.193 ms – 110 GET /favicon.ico 404 5.395 ms – 994 MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 at NativeConnection.Connection.

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주제와 관련된 이미지 mongooseserverselectionerror connect econnrefused 127.0.0.127017

주제와 관련된 더 많은 사진을 참조하십시오 Mongodb connection refused 127.0.0.1:27017 error solved | mongoose connect error running npm start. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.

Mongodb connection refused 127.0.0.1:27017 error solved |  mongoose connect error running npm start
Mongodb connection refused 127.0.0.1:27017 error solved | mongoose connect error running npm start

주제에 대한 기사 평가 mongooseserverselectionerror connect econnrefused 127.0.0.127017

  • Author: Coding Bot
  • Views: 조회수 14,500회
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  • Date Published: 2021. 9. 29.
  • Video Url link: https://www.youtube.com/watch?v=oKrExwK8G38

What is connect Econnrefused?

Enhancement Number. The ECONNREFUSED Connection refused by the server error, is a common error returned by the Filezilla FTP client. This error indicates that the user is trying to connect to your server and is unable to connect to the port. There are a few reasons the client would receive this error.

How do I access MongoDB on localhost?

To connect to your local MongoDB, you set Hostname to localhost and Port to 27017 . These values are the default for all local MongoDB connections (unless you changed them). Press connect, and you should see the databases in your local MongoDB.

How use MongoDB compass locally?

This page outlines how to use MongoDB Compass to connect to a MongoDB host.

Paste your connection string.
  1. Navigate to your Atlas Clusters view.
  2. Click Connect for your desired cluster.
  3. Click Connect with MongoDB Compass.
  4. Copy the provided connection string.

How does MongoDB connect to node js database?

How to Connect MongoDB to Node. js Using Mongoose
  1. How to Connect MongoDB to Node. js Using Mongoose. …
  2. Prerequisites. …
  3. Step 1 – Installing Mongoose on a Node. …
  4. Step 2 – Creating the connection. …
  5. Step 3 – Creating the schema. …
  6. Step 4 – Creating the POST endpoint. …
  7. Step 5 – Creating the GET endpoint. …
  8. Step 6 – Testing the endpoints.

How do I fix error connect Econnrefused 127.0 0.1 8080?

econnrefused means most probably you have not started your server on port 8080. ECONNREFUSED (Connection refused): No connection could be made because the target machine actively refused it. This usually results from trying to connect to a service that is inactive on the foreign host. Show activity on this post.

How do I fix connect Econnrefused?

How do you fix Econnrefused?
  1. Close the connection and start it again.
  2. Close down FileZilla and start it up again.
  3. Check the domain name in the connection settings – it might need to start with ftp.
  4. Check the port number is correct.
  5. Check that the user name and password are correct.

How do I connect to a MongoDB server?

How to connect to your remote MongoDB server
  1. Set up your user. First ssh into your server and enter the mongo shell by typing mongo . …
  2. Enable auth and open MongoDB access up to all IPs. Edit your MongoDB config file. …
  3. Open port 27017 on your EC2 instance. …
  4. Last step: restart mongo daemon (mongod)

How do I access MongoDB database?

To open up the MongoDB shell, run the mongo command from your server prompt. By default, the mongo command opens a shell connected to a locally-installed MongoDB instance running on port 27017 . Try running the mongo command with no additional parameters: mongo.

How do I access MongoDB in my browser?

By default, MongoDB starts at port 27017. But you can access it in a web browser not at that port, rather, at a port number 1000 more than the port at which MongoDB is started. So if you point your browser to http://localhost:28017, you can see MongoDB web interface.

How do I open a database in MongoDB compass?

To access the Databases tab, click the cluster name in the upper left corner and select the Databases tab. From this view, you can click a database name in the list to view its collections. Alternatively, you can view database collections by clicking the desired database in the left-hand navigation.

What is connection string in MongoDB compass?

MongoDB connection string is defined as connection format to join the MongoDB database server, we have using username, hostname, password, and port parameter to connect the database server. Without a connection string, we cannot connect to the database server, we need a connection string to connect the database server.

Why MongoDB compass is not opening?

This error often occurs when: You provide no hostname or an invalid hostname to the Compass connect dialog. The destination server rejects a connection on an incorrect port. Your MongoDB cluster or server has been shutdown or the server hostname has changed.

How does Node Express Connect to MongoDB?

Connect to a cluster in MongoDB cloud
  1. Connection code. Provide the MongoDB URI of your cluster to mongoose.connect() ( refer to this article for creating a free-tier cluster for MongoDB in the cloud) mongoose.connect( …
  2. Define a schema. Let’s create a schema for a new collection. …
  3. Define the model.

How do I use MongoDB and MySQL in node JS?

js has the ability to work with both MySQL and MongoDB as databases. In order to use either of these databases, you need to download and use the required modules using the Node package manager. For MySQL, the required module is called “mysql” and for using MongoDB the required module to be installed is “Mongoose.”

What causes Econnreset?

ECONNRESET occurs when the server side closes the TCP connection and your request to the server is not fulfilled. The server responds with the message that the connection, you are referring to a invalid connection.

Why is my FTP connection refused?

A “Connection Refused” error means that either the server you’re trying to connect to isn’t running an FTP server, or there’s a firewall in your way that’s preventing the connection. An “User Authentication failed” error would usually occur if your credentials are bad.

MongoError: connect ECONNREFUSED 127.0.0.1:27017

I’m using NodeJS wih MongoDB using mongodb package. When I run mongod command it works fine and gives “waiting for connection on port 27017”. So, mongod seems to be working. But MongoClient does not work and gives error when I run node index.js command-

MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017]

I have install mongo db 3.4 and my code is-

var MongoClient = require(‘mongodb’).MongoClient; var dburl = “mongodb://localhost:27017/test”; MongoClient.connect(dburl, function(err, db) { if (err) { throw err; } console.log(‘db connected’); db.close(); });

I have created data/db directories on root and given write permissions. mongod.conf file takes db path as-

storage: dbPath: /var/lib/mongo

But it seems that it is actually taking db path as data/db and not var/lib/mongo

It working earlier but suddenly stopped.

MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017

Hello, I am having trouble getting connected to my localhost MongoDB on Mac OS. I have read through countless forums and tried everything to get mongod and the mongodb-community server started, but nothing has worked. The error I am getting is below:

const serverSelectionError = new ServerSelectionError(); ^

MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017`

Can anyone help me with this please?

How to setup a local MongoDB Connection

How to setup a local MongoDB Connection

I always use MongoDB as a database when I work on an app. And I like to connect to a database on my computer because it speeds up dev and test-related work.

Today, I want to share how to create and connect to a local MongoDB Database.

Installing MongoDB

You need to install MongoDB on your computer before you can connect to it. You can install MongoDB by following these instructions (Mac and Windows).

Once you have completed the installation process, try typing mongo –version into your command line. You should get a response similar to the following:

mongo –version

Starting MongoDB

You can start MongoDB on your computer with the mongod command.

mongod

Keep the mongod window running when you want to work with your local MongoDB. MongoDB stops when you close the window.

Brief overview of how MongoDB works

MongoDB lets you store things (called documents) inside databases. Each database contains multiple collections.

To make it easier to understand, you can think of MongoDB as a building. It contains many rooms.

Each room is a database. Each database is responsible for storing information about one application. You can store as much information as you want.

You have an unlimited supply of boxes in each room. Each box is a collection. Each collection can only contain one type of data.

For example, one collection can be used for books, one collection for users, one collection for toys, and so on.

Adding items to a database

One way to add items to a MongoDB database is through the Mongo Shell. To open up the Mongo Shell, you open another command line window and run mongo .

mongo

Note: Make sure you keep the mongod window open! You won’t be able to interact with the Mongo Shell if you close the mongod window.

First, we need a database to work with. You can see the currently selected database with the db command. (By default, you should be on the test database).

> db

Note: The > in the code above signifies the Mongo Shell. You don’t need to type > . It is not part of the command.

For this article, we’ll create a database called game-of-thrones . You can use the use command to create and switch to a new database.

> use game-of-thrones

We’re going to add a character into the game-of-thrones . Here, we need to put the character into a collection. We’ll use characters as the name of the collection.

To add an item to a collection, you can pass a JavaScript object into db..insertOne() .

db.characters.insertOne({ name: ‘Jon Snow’ })

Let’s add one character into the database before we continue.

db.characters.insertOne({ name: ‘Arya Stark’ })

You can see the characters we’ve added by using the find command. ( db..find() ).

db.characters.find()

This is all you need to know about the Mongo Shell for now.

Accessing MongoDB with MongoDB Compass

MongoDB Compass gives you another way to access MongoDB. It’s an app that makes checking (and editing) databases easier if you’re not a fan of the command line.

To use MongoDB Compass, you have to install it first. You can download and install MongoDB Compass from the this page.

When you open MongoDB Compass, you’ll see a screen that looks like this:

To connect to your local MongoDB, you set Hostname to localhost and Port to 27017 . These values are the default for all local MongoDB connections (unless you changed them).

Press connect, and you should see the databases in your local MongoDB. Here, you should be able to see game-of-thrones (the database we created for this tutorial).

If you click on game-of-thrones , you’ll see a characters collection.

And if you click on characters , you’ll see the two characters we created in the earlier section.

This is how you can use MongoDB Compass to connect to a MongoDB that’s running on your own computer.

Connecting to MongoDB with a Node server

When we build applications, we connect to MongoDB through our applications (not through Mongo Shell nor MongoDB Compass).

To connect to MongoDB, we need to use the mongodb package. Alternatively, you can also use Mongoose.

(By the way, I prefer using Mongoose over the MongoDB native driver. I’ll share why in a future article).

Connecting with MongoDB native driver

First you have to install and require the mongodb package.

npm install mongodb –save

const MongoClient = require(‘mongodb’).MongoClient

You can connect to your local MongoDB with this url:

const url = ‘mongodb://127.0.0.1:27017’

With the Mongo Client, you need to specify the database you’re using after you connect to MongoDB. Here’s what it looks like:

const dbName = ‘game-of-thrones’ let db MongoClient.connect(url, { useNewUrlParser: true }, (err, client) => { if (err) return console.log(err) // Storing a reference to the database so you can use it later db = client.db(dbName) console.log(`Connected MongoDB: ${url}`) console.log(`Database: ${dbName}`) })

Connecting with Mongoose

To connect with Mongoose, you need to download and require mongoose .

npm install mongoose –save

const mongoose = require(‘mongoose’)

When you use Mongoose, the connection url should include the database you’re connecting to:

const url = ‘mongodb://127.0.0.1:27017/game-of-thrones’

You can connect to MongoDB with the connect method:

mongoose.connect(url, { useNewUrlParser: true })

Here’s how you can check whether the connection succeeds.

const db = mongoose.connection db.once(‘open’, _ => { console.log(‘Database connected:’, url) }) db.on(‘error’, err => { console.error(‘connection error:’, err) })

If you enjoyed this article, please support me by sharing this article Twitter or buying me a coffee 😉. If you spot a typo, I’d appreciate if you can correct it on GitHub. Thank you!

Connect to MongoDB — MongoDB Compass

Connect to MongoDB

This page outlines how to use MongoDB Compass to connect to a MongoDB host. You can connect to a standalone, replica set, or sharded cluster host.

Note MongoDB Atlas If you need to create a MongoDB host, consider using MongoDB Atlas . Atlas is a cloud-hosted database-as-a-service which requires no installation, offers a free tier to get started, and provides a copyable URI to easily connect Compass to your deployment.

If you need to install Compass , see Download and Install Compass for instructions.

How to Connect MongoDB to Node.js Using Mongoose

Mongoose.js connects your MongoDB clusters or collections with your Node.js app. It enables you to create schemas for your documents. Mongoose provides a lot of functionality when creating and working with schemas.

In this tutorial we will look at how to connect a MongoDB instance with a Node.js application.

How to Connect MongoDB to Node.js Using Mongoose

MongoDB is one of the most widely used No-SQL databases in the developer world today. No-SQL databases allow developers to send and retrieve data as JSON documents, instead of SQL objects. To work with MongoDB in a Node.js app, we can use Mongoose.

Prerequisites

Before we move on, you’ll need to have the following:

Node.js installed on your machine.

A MongoDB instance running on your machine. You won’t need this if you want to use MongoDB Atlas.

Some knowledge of Node.js and Express.js.

Step 1 – Installing Mongoose on a Node.js environment

Create and navigate to a new folder by running the following commands on a terminal.

$ mkdir mongoose_tutorial $ cd mongoose_tutorial

Then install Express and Mongoose by executing the following command on a terminal.

$ npm install express mongoose –save

If you are using Yarn, run:

$ yarn add express mongoose

Step 2 – Creating the connection

Create a new file server.js to start our Express.js server. Load mongoose and express by adding the following code to server.js .

server.js

const express = require ( “express” ); const mongoose = require ( “mongoose” ); const Router = require ( “./routes” ) const app = express (); app . use ( express . json ());

Then connect to a local MongoDB instance using the mongoose.connect() function.

server.js

mongoose . connect ( ‘mongodb://localhost:27017/usersdb’ , { useNewUrlParser : true , useFindAndModify : false , useUnifiedTopology : true } );

We pass the useNewUrlParser: true , etc. to mongoose.connect() to avoid the DeprecationWarning .

To create a connection to MongoDB Atlas, follow the next steps.

Open your Cluster tab in MongoDb Atlas and click CONNECT .

Select Connect your application and choose Node.js for the driver. Copy the connection string.

With the connection at hand, create the following variables and replace their values using your actual credentials.

server.js

const username = “” ; const password = “” ; const cluster = “” ; const dbname = “myFirstDatabase” ; mongoose . connect ( `mongodb+srv:// ${ username } : ${ password } @ ${ cluster } .mongodb.net/ ${ dbname } ?retryWrites=true&w=majority` , { useNewUrlParser : true , useFindAndModify : false , useUnifiedTopology : true } );

It’s important to note that the cluster variable is the values appearing between the @ and .mongodb.net . In my case the cluster variable is cluster0.vte2d .

To make sure your connection was successful, add the following code right below your mongoose.connect() .

server.js

// … const db = mongoose . connection ; db . on ( “error” , console . error . bind ( console , “connection error: ” )); db . once ( “open” , function () { console . log ( “Connected successfully” ); });

Then, set the app to listen to port 3000.

server.js

// … app . use ( Router ); app . listen ( 3000 , () => { console . log ( “Server is running at port 3000” ); });

We will create the Router later.

Step 3 – Creating the schema

Now let’s define a collection schema for our application.

Create another file models.js and add the following code.

models.js

const mongoose = require ( “mongoose” ); const UserSchema = new mongoose . Schema ({ name : { type : String, required : true , }, age : { type : Number, default : 0 , }, }); const User = mongoose . model ( “User” , UserSchema ); module . exports = User ;

We create a schema UserSchema using the mongoose.Schema() method. The schema collects the name and age fields sent from the request.

We then export the schema using the last 2 lines.

Step 4 – Creating the POST endpoint

Create a new file routes.js . This file defines the endpoints for our app.

Load express and the schema we created in Step 3 by adding the following code.

routes.js

const express = require ( “express” ); const userModel = require ( “./models” ); const app = express ();

Then create the POST endpoint by adding the following code.

routes.js

// … app . post ( “/add_user” , async ( request , response ) => { const user = new userModel ( request . body ); try { await user . save (); response . send ( user ); } catch ( error ) { response . status ( 500 ). send ( error ); } });

We create a route /add_user to add a new user to the database. We parse the content to be saved to the database using the line const user = new userModel(request.body); .

We then use a try/catch block to save the object to the database using the .save() method.

Step 5 – Creating the GET endpoint

Add the following lines of code to the routes.js file.

routes.js

// … app . get ( “/users” , async ( request , response ) => { const users = await userModel . find ({}); try { response . send ( users ); } catch ( error ) { response . status ( 500 ). send ( error ); } });

We create a route /users to retrieve all the users saved using the /add_user route. We collect these users from the database using the .find() method. We then use a try/catch block to ‘send’ the users to this endpoint.

Finally, export these endpoints by adding the line below.

routes.js

// … module . exports = app ;

At this point, your application is ready. Serve the app by running the command below.

$ node server.js

Step 6 – Testing the endpoints

Now, let’s test the two endpoints we created above.

Open Postman and make a POST request to the http://localhost:3000/add_user endpoint.

A new user is added to the database. You can check your collections to confirm this.

Make a GET request to the http://localhost:3000/users endpoint.

The endpoint returns a list of all the users added to the database.

Conclusion

In this tutorial, we have looked at how to set up Mongoose. We have also looked at how to establish a database connection and how to create a schema for our collections. Mongoose can be used to connect to both MongoDB and MongoDB Atlas to your Node.js app.

I hope you found this article helpful.

Happy coding!

Peer Review Contributions by: Adrian Murage

MongoError: kết nối ECONNREFUSED 127.0.0.1:27017

Tôi đang sử dụng NodeJS wih MongoDB bằng gói mongodb. Khi tôi chạy lệnh mongod, nó hoạt động tốt và cho biết “đang chờ kết nối trên cổng 27017”. Vì vậy, mongod dường như đang hoạt động. Nhưng MongoClient không hoạt động và báo lỗi khi tôi chạy lệnh node index.js-

MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017]

Tôi đã cài đặt mongo db 3.4 và mã của tôi là-

var MongoClient = require(‘mongodb’).MongoClient; var dburl = “mongodb://localhost:27017/test”; MongoClient.connect(dburl, function(err, db) { if (err) { throw err; } console.log(‘db connected’); db.close(); });

Tôi đã tạo thư mục data / db trên root và được cấp quyền ghi. tệp mongod.conf lấy đường dẫn db như-

lưu trữ: dbPath: / var / lib / mongo

Nhưng có vẻ như nó thực sự đang sử dụng đường dẫn db dưới dạng dữ liệu / db chứ không phải var / lib / mongo

Nó hoạt động trước đó nhưng đột nhiên dừng lại.

[Question] Connect fail MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 · Issue #1358 · caprover/caprover

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MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017

Again, I went through another error in Express and MongoDB.

in/node /home/bbuser/Projects/untitled/bin/www untitled:server Listening on port 3000 +0ms GET / 200 28.918 ms – 2388 GET /stylesheets/style.css 200 4.193 ms – 110 GET /favicon.ico 404 5.395 ms – 994 MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 at NativeConnection.Connection.openUri (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/connection.js:797:32) at /home/bbuser/Projects/untitled/node_modules/mongoose/lib/index.js:341:10 at /home/bbuser/Projects/untitled/node_modules/mongoose/lib/helpers/promiseOrCallback.js:32:5 at new Promise () at promiseOrCallback (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/helpers/promiseOrCallback.js:31:10) at Mongoose._promiseOrCallback (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/index.js:1167:10) at Mongoose.connect (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/index.js:340:20) at Object. (/home/bbuser/Projects/untitled/app.js:11:10) at Module._compile (node:internal/modules/cjs/loader:1101:14) at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10) { reason: TopologyDescription { type: ‘Unknown’, servers: Map(1) { ‘localhost:27017’ => [ServerDescription] }, stale: false, compatible: true, heartbeatFrequencyMS: 10000, localThresholdMS: 15, logicalSessionTimeoutMinutes: undefined } } node:internal/process/promises:246 triggerUncaughtException(err, true /* fromPromise */); ^ MongooseServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 at NativeConnection.Connection.openUri (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/connection.js:797:32) at /home/bbuser/Projects/untitled/node_modules/mongoose/lib/index.js:341:10 at /home/bbuser/Projects/untitled/node_modules/mongoose/lib/helpers/promiseOrCallback.js:32:5 at new Promise () at promiseOrCallback (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/helpers/promiseOrCallback.js:31:10) at Mongoose._promiseOrCallback (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/index.js:1167:10) at Mongoose.connect (/home/bbuser/Projects/untitled/node_modules/mongoose/lib/index.js:340:20) at Object. (/home/bbuser/Projects/untitled/app.js:11:10) at Module._compile (node:internal/modules/cjs/loader:1101:14) at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10) { reason: TopologyDescription { type: ‘Unknown’, servers: Map(1) { ‘localhost:27017’ => ServerDescription { _hostAddress: HostAddress { isIPv6: false, host: ‘localhost’, port: 27017 }, address: ‘localhost:27017’, type: ‘Unknown’, hosts: [], passives: [], arbiters: [], tags: {}, minWireVersion: 0, maxWireVersion: 0, roundTripTime: -1, lastUpdateTime: 2063880, lastWriteDate: 0, error: MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017 at connectionFailureError (/home/bbuser/Projects/untitled/node_modules/mongodb/lib/cmap/connect.js:293:20) at Socket. (/home/bbuser/Projects/untitled/node_modules/mongodb/lib/cmap/connect.js:267:22) at Object.onceWrapper (node:events:510:26) at Socket.emit (node:events:390:28) at emitErrorNT (node:internal/streams/destroy:157:8) at emitErrorCloseNT (node:internal/streams/destroy:122:3) at processTicksAndRejections (node:internal/process/task_queues:83:21) } }, stale: false, compatible: true, heartbeatFrequencyMS: 10000, localThresholdMS: 15, logicalSessionTimeoutMinutes: undefined } } Process finished with exit code 1

키워드에 대한 정보 mongooseserverselectionerror connect econnrefused 127.0.0.127017

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