I must transfer databases (everything without system's databases) from one replication server to another replication server. Everything is on MariaDB (10.0.20) and i need to do it with minimal downtime. On source servers I have master (serverA1), slave (serverA2), slave (serverA3) replication. On destination server I have the same situation - master (ServerB1), slave (ServerB2), slave (ServerB3). Now I must move databases from servers A to servers B, with minimal downtime and not to ruin replication. Server A and B have different databases. In future Server A, will be offlined.
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