Starting Group Replication or Creating InnoDB Cluster Fails: "[ERROR] Plugin group_replication reported: 'Unable to announce tcp port 13306. Port already in use?'"

(Doc ID 2309228.1)

Last updated on MARCH 13, 2018

Applies to:

MySQL Server - Version 5.7 and later
Information in this document applies to any platform.


When trying to start Group Replication (either manually or through InnoDB Cluster), Group Replication fails to start and the MySQL error log has errors like:

The port number will be the one specified in the group_replication_local_address (port 13306 by default if port = 3306 and using InnoDB Cluster).


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms