Lets be inSync! (opens in new tab)

Percona Toolkit + pt-table-checksum + pt-table-sync = Faster Replica Recovery Asynchronous replication with MySQL is a tried and true technology. Add the use of GTID’s and you have a very stable solution. The fundamental issue with async replication is that writes sent to the Replica are not guaranteed to be written. I have only seen a handful of times when writes did not get applied to the replica. Most of the time this happens is due to network packet drops or a replica crashes before new d...