Home/ Questions/How can I handle - failed to set up listener: SocketException: address already in use?
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Chloë Gallet
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Asked: 2022-05-17T12:53:28+00:00 In:

How can I handle – failed to set up listener: SocketException: address already in use?

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How to solve the problem – failed to set up listener: SocketException: address already in use? I have the sample detail:

Agungs-MacBook-Pro:~ agungmahaputra$ mongod
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] MongoDB starting : pid=5189 port=27017 dbpath=/data/db 64-bit host=Agungs-MacBook-Pro.local
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] db version v3.6.0
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] git version: a57d8e71e6998a2d0afde7edc11bd23e5661c915
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2n 7 Dec 2017
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] allocator: system
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] modules: none
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] build environment:
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] distarch: x86_64
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] target_arch: x86_64
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] options: {}
 2017-12-26T15:31:15.911+0700 E STORAGE [initandlisten] Failed to set up listener: SocketException: Address already in use
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] now exiting
 2017-12-26T15:31:15.911+0700 I CONTROL [initandlisten] shutting down with code:48
 Agungs-MacBook-Pro:~ agungmahaputra$

While I was running it, I found the warning message:

SocketException: Address already in use MONGODB

That is my question in my midterm exam, and it is urgent. I searched the solutions for some websites, but I didn’t get it. I may miss any line or other changes. I appreciate your assistance!

socketexception
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2 Answers

  1. Best Answer
    Expert

    The cause:

    The error Failed to set up listener: SocketException: Address already in use may be for the reasons:

    • You have run mongodb
    • You use default port 27017

    Solution: 

    It already has a process running on port 27017, which mongodb uses. So you’ll have to either terminate the process in that port or attempt another port number.

    Use mongod —port 27018 to test it out.

    You have the option of changing the port number.

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  2. You can delete the mongod inactive instance and create a new one.

    First, type in the following to find a list all tasks currently running on your computer. 

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

    Search for mongod COMAND, its ID and type. 

    sudo kill <mongo_command_pid>

    Start your mongod instance now by typing. 

    mongod

    MongoDB is running smoothly.

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