AWS Dual Mode RDS Internal Server Error 500 SOLVED
If you're getting a generic error from AWS when trying to create a Dual Mode DB in RDS, it's probably because your VPCs are messed up. In this video, I've recreated the error by trying to use subnets that only support IPv6. Simply put, RDS cannot create a DB Subnet group unless each subnet has IPv4 support; unfortunately the generic error doesn't' communicate this.
Errors Recreated:
“Your request to create DB cluster [cluster name] didn't work. An internal error has occurred. Please try your query again at a later time.”
“We're sorry, your request to create DB subnet group [subnet group name] has failed. An internal error has occurred. Please try your query again at a later time.”
“A DB subnet group can't contain both IPv4 and IPv6 native subnets.”
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#AWS #RDS #ipv6 #ipv4