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

For windows,

1)Right click on the task bar and select Task Manager.

2)Select server at the given menu

3)Search mongoDB and select that and right click (click open services).

4)Search mongoDB Server, select that and click "start" at the left side window

Now it's ready to go

Answer 2

This worked for me (MAC):

Step 1 : Check the status if MongoDB is running or not

brew services list | grep mongo

Step 2 : if you get something like :

Name           Status  User    Plist
mongodb        stopped

Step 3: : start the service:

brew services start mongodb 

else :

if you get like this after step 2:

Name           Status  User    Plist
mongodb        started u1 /Users/u1/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

then it is already running then you can restart your service by

brew services restart mongodb