Replicate from RDS to on-prem PXC

MySQL & MariaDB Percona XtraDB Cluster 5.x
1

Hello all,

I have the task of migrating an RDS database to an on-prem PXC.

What I would like is to set the PXC as a replication slave to the RDS until I am ready to failover to having all sources writing to PXC only.

The process can be async, meaning the PXC while a slave can be behind RDS.

Could someone help with the high level steps involved to do this. I was thinking something along the line of:

  1. Creating an rds replication slave to master rds
  2. Create an on prem slave to the PXC
  3. make the on-prem slave a ‘slave’ to the rds slave?

Many thanks,
Argy

2

By not having access directly to that VM where RDS resides I think will be quite tricky, never tried to be fair but the way I see it would be:

  • Lock the tables (RO) on RDS
  • Dump everything (or those DBs that you need to replicate)
  • Import these On-Prem
  • Get binary logs details from RDS (binary file name and position)
  • Initiate and Start the slave (on-prem) to use these as starting point
  • Release the lock from RDS Master
  • Check replication status…

As I said, never tried, never faced such a request but this would be my first thought.