MongoError: connect ECONNREFUSED 127.0.0.1:27017

Question

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

Answer 1

I've forgot to start MongoDB at all. Go to separate tab in terminal and type:

sudo service mongod start

Answer 2

Please ensure that your mongo DB is set Automatic and running at Control Panel/Administrative Tools/Services like below. That way you wont have to start mongod.exe manually each time.

Answer 3

I was having the same problem today.. and has been searching for answers.. I am on Ubuntu... however, I could not find the correct one that works on this thread.. after much research the following worked for me finally!! :)

First, after running

mongod dbpath

if appeared that mongodb was looking for the data/db directory.. which was missing in my installed mongodb app.. so I ran the following commands:

$ sudo mkdir -p /data/db

then run,

$ sudo chown -R $USER /data/db

chown - changes ownership of files/dirs. Ie. owner of the file/dir changes to the specified one, but it doesn't modify permissions. As detailed here: https://unix.stackexchange.com/questions/402062/how-are-chown-and-chmod-command-different-in-the-given-operation

Finally, run

`$ sudo systemctl enable mongod.service

It will give a message: Created symlink /etc/systemd/system/multi-user.target.wants/mongod.service → /lib/systemd/system/mongod.service and started the service.