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Error message in the MySQL Router: metadata_cache ERROR Member Hostname:port (uuid) found in replicaset, yet is not defined in metadata (Doc ID 2526087.1)

Last updated on APRIL 29, 2021

Applies to:

MySQL Router - Version 8.0 and later
Information in this document applies to any platform.
Disclaimer: Starting from v8.0, some terms have been deprecated. Older releases will only use the deprecated terminology, and new releases will only use new terminology. Please see for a complete list of those changes, and in which minor versions it happened.


 MySQL Router can't redirect the connections to one of nodes in the InnoDB Cluster.

 For example, with error messages in the MySQL Router logs, Router won't be able to redirect connections to host1:3306 with uuid cfcxxx-xxxx-xxx-xxxx-xxxxxxx.



 The node was part of the InnoDB Cluster previously, but restored recently.


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