Couldn't connect to server 127.0.0.1:27017 connection attempt failed MongoDB

Question

I am working on Ubuntu OS 16.04. I am starting mongodb using commands:: sudo service mongod start and then mongo

It generated this error for m

Answer 1

mongod --repair worked for me ,

sudo mongod --repair
sudo mongod

Then open a different tab/terminal:

mongo

After this your local setup will work properly

Answer 2

This error occurs when your mongodb server is not running on 27017 port. Try the below command to start the mongodb server.

sudo systemctl start mongod

And after running this command run the mongo command.

Answer 3

On MacOS , I executed the 4th step of this https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x-tarball/

tutorial with sudo

sudo mongod --dbpath /usr/local/var/mongodb --logpath /usr/local/var/log/mongodb/mongo.log --fork

and It worked!

Answer 4

MAC: For my case I forgot to turn on mongo server locally, so I fixed the issue by firstly open a new tab on terminal then turn on mongodb server like so: -

mongod 

After that just try to open mongo shell again like so: -

mongo 

Finally it worked!

Answer 5

Windows

• Open task manager.
• click on the services tab.
• Search for MongoDB service.
• After selecting click on the 'view services' tab.
• Search for MongoDB server.
• After Selecting click on the Run button on the top left side menu.

And you are good to go.

Answer 6

i too got the same problem.here is the way how i resoleved.go to taskmanager.select>services and find mongodbserver in the list make sure the mongodb is running by selecting it.

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