Getting around MASTER_HOST length limit in 'CHANGE MASTER TO...'? I'm trying to configure external slave connecting to Aurora RDS. To my delight, I run into a silly problem where the Aurora cluster name -
 assigned by AWS - exceeds permissible MASTER_HOST limit of 60 characters. 

I want to use the cluster name (not IP) since it can be dynamically changed by Route53 on failover.

Can anyone suggest a solution?
Create a DNS CNAME record in one of your own domains and use the cluster endpoint hostname as the target of the CNAME record.  Then set MASTER_HOST to that alternate (shorter) name.

MySQL has no problem with another name in the resolution chain being longer than the somewhat arbitrarily-chosen 60 character hostname limit.