MySQL Production Checklist

gtid_mode = ON and enforce_gtid_consistency = ON.

binlog_format = ROW, with binlog_row_image set to match what downstream consumers need.

super_read_only = ON on every replica so errant transactions cannot be created.

Replicas use parallel apply (replica_parallel_workers with WRITESET dependency tracking).

binlog_expire_logs_seconds is long enough for a replica to be rebuilt or catch up after an outage.

An alert fires when Replica_IO_Running or Replica_SQL_Running is not Yes.

If semi-synchronous replication is used, Rpl_semi_sync_source_status is monitored for silent fallback to async.