replication

Deep dive into Galera Cluster internals — the wsrep API, write-set replication, certification-based conflict resolution, node states, flow control, quorum mechanics, and SST vs IST recovery.

Understand MySQL binary log replication from the ground up — how async and semi-sync replication work, what GTIDs are and why they matter, replication lag causes, and the failure modes that led to Galera Cluster.