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BindException: Address already in use when using kafka-connect with confluent

New Contributor

Hello eveyrone!

I am using kafka confluent for my project. When I run kafka-connect command, I always get Address already in use response although I don't use 8003 port. Despite I still can use this feature with original kafka. Anyone can help me? Thanks!


Super Mentor


As per kafka-connect docs the default port "rest.port" is 8083 

  • rest.port - the port the REST interface listens on for HTTP requests

So are you getting conflict on port 8003 (or there is a typo ? is it 8083) 

Can you try changing the "rest.port" in your worker config to something else and then try again.

Also please try to run the below commands before starting kafka-connect to verify if there is any port conflict? Or if there are any bind address issue


# netstat -tnlpa | grep 8083
# netstat -tnlpa | grep 8003