SocketException: Address already in use MONGODB

Question

i found this error when trying to run mongodb. I install it via homebrew. Please assist

Agungs-MacBook-Pro:~ agungmahaputra$ mongod
2017-12-26T15:31:15.911+0         


        

Answer 1

if you're using mongodb version 4.*

in default settings, there should be a "db" folder "/data/db" having the necessary permission.

to check it the MongoDB service started

brew services list

if not then run

brew services start mongodb

run mongo instead of mongod

Answer 2

First, shutdown the running server using:

mongod --shutdown

Then run:

sudo mongod

Answer 3

I solved it pasting the command below into the command line in order to close mongo's server.

sudo pkill -f mongod

"sudo" (Super User Do) runs the command admin permissions, so it will ask you for your user password

Answer 4

If your mongod process is already down, just remove the .sock file in /tmp:

My mongod is already down, so does not appears in:

lsof -iTCP -sTCP:LISTEN -n -P

The error was:

[root@ol7db19c1 ~]# mongod -f /etc/csrs_2.conf
about to fork child process, waiting until server is ready for connections.
forked process: 6721
ERROR: child process failed, exited with error number 48
To see additional information in this output, start without the "--fork" option.

In the log file (/var/mongodb/db/csrs2.log):

2020-07-05T16:03:59.354-0300 E  STORAGE  [initandlisten] Failed to set up listener: SocketException: Address already in use

So, find for the socket locking:

ls -ltra /tmp|grep .sock

And just remove it (do it with caution in production environment):

rm -f mongodb-26002.sock

G-luck!

Answer 5

After running this commands below:

sudo lsof -iTCP -sTCP:LISTEN -n -P

Search for mongod COMMAND and its PID and type,

sudo kill <mongo_command_pid>

And restarting mongod, it still fails with the same error "SocketException: Address already in use MONGODB".

Server was restarted yesterday and then this happened.