NodeJS connection error with mongoDB

Question

I've got a problem to connect my socketIO application (made with nodeJS) with my mongoDB. I try to connect on an remote server, but its throws me error

Here's my code (there's no user/password set in the mongoDB) :

   var url = "mongodb://192.168.1.5:27017/DB"

   MongoClient.connect(url, function(err, db) {
           console.log("test")
           if (!err) {
                   console.log("test");
           }
           else {
                   console.dir(err)
           throw err
           }
   //  db.close();
   });

And here's when I launch the server and I tried to launch the app in a navigator : Server listening at port 80:

{ [MongoError: connect ECONNREFUSED] name: 'MongoError', message: 'connect ECONNREFUSED' }
/root/fys-realtime/examples/chat/node_modules/mongodb/lib/server.js:228
        process.nextTick(function() { throw err; })
                                            ^
Error
    at Error.MongoError (/root/fys-realtime/examples/chat/node_modules/mongodb/node_modules/mongodb-core/lib/error.js:13:17)
    at Server.destroy (/root/fys-realtime/examples/chat/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:629:47)
    at Server.close (/root/fys-realtime/examples/chat/node_modules/mongodb/lib/server.js:344:17)
    at Db.close (/root/fys-realtime/examples/chat/node_modules/mongodb/lib/db.js:267:19)
    at /root/fys-realtime/examples/chat/node_modules/mongodb/lib/db.js:196:12
    at null.<anonymous> (/root/fys-realtime/examples/chat/node_modules/mongodb/lib/server.js:226:9)
    at g (events.js:180:16)
    at emit (events.js:98:17)
    at null.<anonymous> (/root/fys-realtime/examples/chat/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:238:68)
    at g (events.js:180:16)

throrin19 · Accepted Answer · 2015-03-27 15:46:54Z

14

This error is returned for several errors like :

server is not running
you need to authenticate user
this database does not exists
the mongodb port is not the default port

Check this. Normaly your problem is just one of these causes

answered Mar 27, 2015 at 15:46

throrin19

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5 Comments

SSH This Over a year ago

Thank you, how can you catch the error and print something useful?

throrin19 Over a year ago

I use mongoose in my nodeJS project but the error log is normally the same. MongoDB library works with callbacks. In NodeJS, you can't catch callback with a standard try/catch.

SSH This Over a year ago

I see, well if someone runs into this error in my app, hopefully they'll google it and find this :)

SSH This Over a year ago

Actually mongoose for this project, not using express yet.

WouldBeNerd Over a year ago

I recently had an error where the first query my node server made was a promise for +-400 individual pieces of data. This caused a connection failure, lesson learned: make sure the connection is established before you do a batch request.

rahulgarg · Accepted Answer · 2015-09-17 08:53:05Z

7

For this to work you have to make the changes in /etc/mongod.conf

comment bind_ip=127.0.0.1 As if this line in not commented it Listen to local interface only.

answered Sep 17, 2015 at 8:53

rahulgarg

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1 Comment

Sam Over a year ago

I cannot believe this is not mentioned in an obvious location....ridiculous. Thanks for the answer.

smj · Accepted Answer · 2015-09-09 05:17:24Z

0

One of the solutions is to change 127.0.0.1 to public ip or whatever the router provided you with in mongodb config file located in /etc

answered Sep 9, 2015 at 5:17

smj

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Comments

Community · Accepted Answer · 2017-05-23 11:48:21Z

0

There could be few reasons for ECONNREFUSED error. Checkpoints

Check if your port is not serving any other process.
Check if your mongod is running.
Check if you localHost is configured correctly with your id or not.

for more you can see this

edited May 23, 2017 at 11:48

CommunityBot

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answered Mar 18, 2016 at 19:30

Anshul

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