Unable to connect to mongodb, error log attached

Question

MongoDB shell version v3.4.2
connecting to: mongodb://127.0.0.1:27017
2017-03-01T12:06:59.013+0800 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017, in(checking socket for error after poll), reason: Connection refused
2017-03-01T12:06:59.015+0800 E QUERY [thread1] Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed :
connect@src/mongo/shell/mongo.js:237:13
@(connect):1:6
exception: connect failed

Answer 1

Has your mongodb started?

Answer 2

The answer above is the correct answer. MongoDB is not started!

Note: connect failed

Love MongoDB! Have Fun!

Answer 3

Use the mongod command to start the local mongo service first

Answer 4

Try restarting mongodb first:

sudo service mongod restart

If it doesn’t work, delete the mongod.lock files in the data directory (the default data directory is /var/lib/mongodb) and try the previous step again

Answer 5

ps -ef | grep mongo
Check if there is any process
/etc/init.d/mongod start